1
|
Mehrabani D, Sholehvar F, Yaghmaei P, Zare S, Razeghian-Jahromi I, Jalli R, Hamzavai M, Mehrabani G, Zamiri B, Karimi-Busheri F. The impact of acemannan, an extracted product from Aloe vera, on proliferation of dental pulp stem cells and healing of mandibular defects in rabbits. Am J Stem Cells 2024; 13:75-86. [PMID: 38765804 PMCID: PMC11101985 DOI: 10.62347/uafc3719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 03/25/2024] [Indexed: 05/22/2024]
Abstract
OBJECTIVES Dental pulp stem cells (DPSCs) were shown to play an important role in regenerative medicine including reconstruction of various bone lesions. This study determined the impact of acemannan, an extracted product from Aloe vera, on in vitro proliferation of DPSCs and in vivo healing of mandibular defects in rabbits. METHODS DPSCs were isolated and characterized. The growth kinetics of cells exposed to acemannan (8 mg/mL) and Hank's balanced salt solution (HBSS) were compared in vitro. Fifteen male rabbits were divided into 3 groups. Five animals were left as control group without any therapeutic intervention. Five rabbits were considered as experimental group 1 and received 20 µL of a cell suspension containing 106 DPSCs in the bone defect. Another 5 rabbits were regarded as experimental group 2 and were injected in the bone defect with 20 µL of a cell suspension containing 106 DPSCs treated with acemannan for 24 h. After 60 days, the animals were assessed by radiography and histologically. RESULTS The mesenchymal properties of DPSCs were confirmed. Population doubling time (PDT) of DPSCs treated with acemannan (29.8 h) was significantly shorter than cells were just exposed to HBSS (45.9 h). DPSCs together with acemannan could significantly accelerate the healing process and osteogenesis in mandibular defects. CONCLUSIONS As DPSCS showed an increased proliferation when treated with acemannan and accelerated the healing process in mandibular defects, these findings can open a new avenue in dentistry regenerative medicine when remedies of bone defects are targeted.
Collapse
Affiliation(s)
- Davood Mehrabani
- Stem Cell Technology Research Center, Shiraz University of Medical SciencesShiraz, Iran
- Burn and Wound Healing Research Center, Shiraz University of Medical SciencesShiraz, Iran
- Comparative and Experimental Medicine Center, Shiraz University of Medical SciencesShiraz, Iran
- Department of Oncology, Cross Cancer Institute, Faculty of Medicine, University of AlbertaEdmonton, AB, Canada
| | - Fatemeh Sholehvar
- Department of Biology, Faculty of Science, Zand Institute of Higher EducationShiraz, Iran
- Department of Biology, Science and Research Branch, Islamic Azad UniversityTehran, Iran
| | - Parichehr Yaghmaei
- Department of Biology, Faculty of Science, Zand Institute of Higher EducationShiraz, Iran
| | - Shahrokh Zare
- Stem Cell Technology Research Center, Shiraz University of Medical SciencesShiraz, Iran
| | | | - Reza Jalli
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical SciencesShiraz, Iran
| | - Marzieh Hamzavai
- School of Dentistry, Shiraz University of Medical SciencesShiraz, Iran
- Dr. Hamzavi Dental Clinic CenterShiraz, Iran
| | - Golshid Mehrabani
- School of Dentistry, Shiraz University of Medical SciencesShiraz, Iran
- Henry M. Goldman School of Dental Medicine, Boston UniversityBoston, MA, USA
| | - Barbad Zamiri
- School of Dentistry, Shiraz University of Medical SciencesShiraz, Iran
| | - Feridoun Karimi-Busheri
- Department of Oncology, Cross Cancer Institute, Faculty of Medicine, University of AlbertaEdmonton, AB, Canada
| |
Collapse
|
2
|
Yousefiyan R, Kordi Yoosefinejad A, Jalli R, Rezaei I. Comparison of breathing pattern and diaphragmatic motion in patients with unilateral cervical radiculopathy and asymptomatic group. BMC Pulm Med 2023; 23:498. [PMID: 38071289 PMCID: PMC10710721 DOI: 10.1186/s12890-023-02804-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/02/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND The associations between neck pain and respiratory dysfunction were clarified in patients with neck pain. There is dearth of evidence on pulmonary dysfunction and diaphragmatic excursion in patients with unilateral cervical radiculopathy (CR). The purpose of this study was to compare the breathing pattern and diaphragmatic excursion in patients with unilateral CR with those in an asymptomatic group. METHODS Twenty-five patients with unilateral CR and 25 asymptomatic individuals aged between 30 and 55 participated in this study. Diaphragmatic motion, breathing pattern, active cervical range of motion and kinesiophobia were investigated in both groups by using fluoroscopy, manual assessment of respiratory motion (MARM), cervical range of motion device, and Tampa scale of kinesiophobia. Statistical significance was set at 0.05. RESULTS No statistically significant differences were found between the two groups with regard to sex, age and body mass index. The mean excursion of the hemi diaphragm on the involved side (the side of CR) was significantly lower than that on the uninvolved side in patients with unilateral CR with a large effect size. The excursion of the involved hemi diaphragm in patients was reduced compared to the matched hemi diaphragm in the control group. There was no significant difference between the hemi diaphragms excursion in the control group. The results of the MARM variables showed that the volume of breathing and the percentage rib cage motion in normal and deep breathing were significantly different between the two groups, but there was no significant difference in the balance of breathing between the two groups. Additionally, the active cervical range of motion was reduced in these patients in comparison to the control group, and it was less on the involved side than on the uninvolved side. CONCLUSION The results of this study revealed a dysfunctional breathing pattern in normal and deep breathing and a unilateral reduction in diaphragmatic excursion on the side of radiculopathy in patients with unilateral CR compared to the control group.
Collapse
Affiliation(s)
- Raziyeh Yousefiyan
- Student Research Committee, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amin Kordi Yoosefinejad
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, 1 Abivardi Avenue, Chamran Blvd, P.O. Box: 71345-1733, Shiraz, Iran
- Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Iman Rezaei
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, 1 Abivardi Avenue, Chamran Blvd, P.O. Box: 71345-1733, Shiraz, Iran.
- Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| |
Collapse
|
3
|
Khademi S, Kordi Yoosefinejad A, Motealleh A, Rezaei I, Abbasi L, Jalli R. The sono-elastography evaluation of the immediate effects of neurodynamic mobilization technique on median nerve stiffness in patients with carpal tunnel syndrome. J Bodyw Mov Ther 2023; 36:62-68. [PMID: 37949601 DOI: 10.1016/j.jbmt.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 01/02/2023] [Indexed: 01/18/2023]
Abstract
OBJECTIVES The stiffness of median nerve increases in carpal tunnel syndrome (CTS) even at mild stage of syndrome which could be regarded as a diagnostic criterion. The aim of this study was to evaluate the immediate effects of neurodynamic technique on median nerve stiffness and cross-sectional area (CSA) at wrist and elbow in individuals with CTS. MATERIAL AND METHODS It was a quasi-experimental study. Twenty patients were recruited for this study. They were included if aged 18-65 years and diagnosed with CTS based on electrodiagnostic and clinical findings. The exclusion criteria were previous surgeries at wrist or elbow. Patients were assessed by shear wave sono-elastography before and immediately after one session of neurodynamic mobilization technique (NDM). The primary outcome measure was the stiffness of the median nerve at wrist and the secondary outcomes were nerve stiffness at elbow and CSA of nerve at wrist and elbow. RESULTS Median nerve stiffness and CSA decreased significantly at wrist immediately after a session of NDM. These parameters also decreased at elbow but were not statistically significant. CONCLUSION One session of NDM reduced the stiffness and CSA of median nerve at wrist in patients with CTS as detected by sono-elastography verifying that sono-elastography is able to quickly detect the immediate biomechanical changes of the median nerve.
Collapse
Affiliation(s)
- Sahar Khademi
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amin Kordi Yoosefinejad
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran; Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Motealleh
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran; Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Iman Rezaei
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran; Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Leila Abbasi
- Physical Therapy Department, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran; Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| |
Collapse
|
4
|
Fallahi MJ, Baghaei A, Rezvani A, Hosseinzadeh M, Jalli R, Mohammadianpanah M, Amirian A, Ghayoomi MA. Lung cancer registry and monitoring: Feasibility study and application (fars lung cancer registry project). J Res Med Sci 2023; 28:48. [PMID: 37496644 PMCID: PMC10366973 DOI: 10.4103/jrms.jrms_760_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 02/12/2023] [Accepted: 02/22/2023] [Indexed: 07/28/2023]
Abstract
Background Lung cancer (LC) is the second most common and deadliest cancer in the world. Despite the control of the progressive course of LC in developed countries, studies indicate an increase in the incidence of the disease in developing countries. We designed a stepwise approach-based surveillance system for registering LC in our region (fars lung cancer registry "FaLCaRe" Project). Materials and Methods A questionnaire was designed and agreed upon by the steering committee using the Delphi method. Variables in nine fields were divided into three groups based on their importance: core, expanded core, and optional. The web-based data bank software was designed. The informative site about LC and team services was designed and launched for professional and community (www.falcare.org) educational purposes. Results 545 variables in nine fields were designed (20 core variables). Primary data of 39 LC patients (24 men and 15 women) with a mean age of 62 years were analyzed. Twenty-six patients had a history of smoking. Moreover, 39% and 26% of patients had a history of hookah smoking and opium use, respectively. Adenocarcinoma was the most prevalent pathologic findings in cases. More than 80% of patients were diagnosed in stages 3 and 4 of cancer. Conclusion FaLCaRe Project with the capabilities seen in it can be used as a model for national LC registration. With continuous valid data registry about LC, it is possible to make decisions at the national level for control and management its consequences while drawing the natural history of the LC.
Collapse
Affiliation(s)
- Mohammad Javad Fallahi
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Thoracic and Vascular Surgery Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abdolmehdi Baghaei
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Poursina Hakim Digestive Diseases Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Alireza Rezvani
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masoud Hosseinzadeh
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Mohammadianpanah
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Colorectal Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Armin Amirian
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Ali Ghayoomi
- Department of Internal Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
5
|
Jalli R, Mehrabani D, Zare S, Saeedi Moghadam M, Jamhiri I, Manafi N, Mehrabani G, Ghabanchi J, Razeghian Jahromi I, Rasouli-Nia A, Karimi-Busheri F. Cell Proliferation, Viability, Differentiation, and Apoptosis of Iron Oxide Labeled Stem Cells Transfected with Lipofectamine Assessed by MRI. J Clin Med 2023; 12:jcm12062395. [PMID: 36983399 PMCID: PMC10054380 DOI: 10.3390/jcm12062395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
To assess in vitro and in vivo tracking of iron oxide labeled stem cells transfected by lipofectamine using magnetic resonance imaging (MRI), rat dental pulp stem cells (DPSCs) were characterized, labeled with iron oxide nanoparticles, and then transfected with lipofectamine to facilitate the internalization of these nanoparticles. Cell proliferation, viability, differentiation, and apoptosis were investigated. Prussian blue staining and MRI were used to trace transfected labeled cells. DPSCs were a morphologically spindle shape, adherent to culture plates, and positive for adipogenic and osteogenic inductions. They expressed CD73 and CD90 markers and lacked CD34 and CD45. Iron oxide labeling and transfection with lipofectamine in DPSCs had no toxic impact on viability, proliferation, and differentiation, and did not induce any apoptosis. In vitro and in vivo internalization of iron oxide nanoparticles within DPSCs were confirmed by Prussian blue staining and MRI tracking. Prussian blue staining and MRI tracking in the absence of any toxic effects on cell viability, proliferation, differentiation, and apoptosis were safe and accurate to track DPSCs labeled with iron oxide and transfected with lipofectamine. MRI can be a useful imaging modality when treatment outcome is targeted.
Collapse
Affiliation(s)
- Reza Jalli
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Davood Mehrabani
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
- Comparative and Experimental Medicine Center, Shiraz University of Medical Science, Shiraz 71439-14693, Iran
- Li Ka Shing Center for Health Research and Innovation, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Shahrokh Zare
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Mahdi Saeedi Moghadam
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Iman Jamhiri
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Navid Manafi
- School of Medicine, Zanjan University of Medical Sciences, Zanjan 71439-14693, Iran
| | - Golshid Mehrabani
- School of Dentistry, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
- Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA 02215, USA
| | - Janan Ghabanchi
- School of Dentistry, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Iman Razeghian Jahromi
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz 71439-14693, Iran
| | - Aghdass Rasouli-Nia
- Department of Oncology, Cross Cancer Institute, Faculty of Medicine, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Feridoun Karimi-Busheri
- Department of Oncology, Cross Cancer Institute, Faculty of Medicine, University of Alberta, Edmonton, AB T6G 1H9, Canada
| |
Collapse
|
6
|
Shokri E, Razeghi M, Raeisi Shahraki H, Jalli R, Motealleh A. The Use of Cluster Analysis by Partitioning around Medoids (PAM) to Examine the Heterogeneity of Patients with Low Back Pain within Subgroups of the Treatment Based Classification System. J Biomed Phys Eng 2023; 13:89-98. [PMID: 36818010 PMCID: PMC9923237 DOI: 10.31661/jbpe.v0i0.2001-1047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/30/2021] [Indexed: 01/31/2023]
Abstract
Background Current evidence in low back pain (LBP) focuses on population averages and traditional multivariate analyses to find the significant difference between variables. Such a focus actively obscured the heterogeneity and increased errors. Cluster analysis (CA) addresses the mentioned shortcomings by calculating the degree of similarity among the relevant variables of the different objects. Objective This study aims to evaluate the agreement between the treatment-based classification (TBC) system and the equivalent 3 cluster typology created by partitioning around medoids (PAM) analysis. Material and Methods In this cross-sectional study, a convenient sample of 90 patients with low back pain (50 males and 40 females) aged 20 to 65 years was included in the study. The patients were selected based on the 21 criteria of 2007 TBC system. An equivalent 3 cluster typology (C3) was applied using PAM method. Cohen's Kappa was run to determine if there was agreement between the TBC system and the equivalent C3 typology. Results PAM analysis revealed the evidence of clustering for a C3 cluster typology with average Silhouette widths of 0.12. Cohen's Kappa revealed fair agreement between the TBC system and C3 cluster typology (Percent of agreement 61%, Kappa=0.36, P<0.001). Selected criteria by PAM analysis were different with original TBC system. Conclusion Higher probability of chance agreement was observed between two classification methods. Significant inhomogeneity was observed in subgroups of the 2007 TBC system.
Collapse
Affiliation(s)
- Esmaeil Shokri
- Department of Physiotherapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohsen Razeghi
- Department of Physiotherapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hadi Raeisi Shahraki
- Department of Epidemiology and Biostatistics, Faculty of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Reza Jalli
- Department of Radiology, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Motealleh
- Department of Physiotherapy, School of Rehabilitation Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
7
|
Kavousi S, Akbarialiabad H, Mehrabani D, Mohamadian A, Ghahramani A, Shirkhoda A, Jalli R. The predictive association between radiological findings and lung cancer development in patients exposed to sulfur mustard gas: 4 decades follow up of 719 victims. BMC Pulm Med 2022; 22:481. [PMID: 36539770 PMCID: PMC9764821 DOI: 10.1186/s12890-022-02282-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Respiratory diseases are the leading cause of morbidity and mortality in the survivors exposed to Sulfur Mustard (SM). The late abnormalities can be present as chronic bronchitis, tracheobronchial stenosis, asthma, bronchiectasis, airway narrowing, lung fibrosis, and lung cancers. This study aims to investigate the association between radiological findings and lung cancer development in patients exposed to sulfur mustard gas. METHODS We entered 719 victims exposed to SM during the Iran-Iraq war into our follow-up study in a consensus manner. They were periodically followed with Chest HRCT scans from 2001 to an interval of 2014-2019. The mean year interval between exposure and the last follow-up was 38 years. For confirming the lung cancer in those with evidence of malignancy in their imaging, fine needle aspiration/biopsy and/or surgical intervention were done. RESULTS Among 719 patients, 57% were free from any pathologic findings in their HRCT scan. Among the subjects who had the abnormal radiologic findings, Air Trapping (AT), Lung Fibrosis (LF), Bronchiectasis (B), and the evidence of lung cancer were found in 265 (36.9%), 207 (28.8%), 151 (21.0%), and 42 (5.8%), respectively. Adenocarcinoma (38.1%) was the most common type of cancer. The right lung was involved more than the left one regarding LF, B, and cancer (p value < 0.05). Considering the laterality, a significant correlation was found between the side of LF and B and the tumor side. Furthermore, it was shown that the lung lobes with LF were statistically correlated to tumor-involved lobes. The relative risk of AT and B existence for tumor development was 11.73 [4.87-28.26] and 10.14 [5.12-20.090], respectively. The most predictive finding was LF which caused the risk of developing tumor 17.75 [7.35-42.86] times higher in the patient with this pathology. By each increment of the number of LF and B, the risk of developing tumors increased by 51% and 76%, respectively. CONCLUSION In survivors exposed to Sulfur Mustard, those with bronchiectasis and lung fibrosis have a significantly higher risk of developing lung cancers, so a close follow-up of these victims is recommended. Trial registration This study was confirmed by the institutional review board and ethics committee at Shiraz University of Medical Sciences (SUMS) with the ethical code IR.SUMS.MED.REC.1399.637.
Collapse
Affiliation(s)
- Shahin Kavousi
- grid.412571.40000 0000 8819 4698Student Research Committee, School of Medicine, Shiraz University of Medical Sciences and Health Services, Shiraz, Iran
| | - Hossein Akbarialiabad
- grid.412571.40000 0000 8819 4698Student Research Committee, School of Medicine, Shiraz University of Medical Sciences and Health Services, Shiraz, Iran
| | - Davood Mehrabani
- grid.412571.40000 0000 8819 4698Stem Cell Technology Research Center, Associate Professor of Pathology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Alireza Mohamadian
- grid.411705.60000 0001 0166 0922Department of Radiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran ,grid.411705.60000 0001 0166 0922Students’ Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Aria Ghahramani
- grid.29857.310000 0001 2097 4281Pennsylvania State University College of Medicine, 500 University Drive, Hershey, PA 17033 USA
| | - Ali Shirkhoda
- grid.266093.80000 0001 0668 7243Department of Radiology and Diagnostic Imaging, University of California, Irvine, CA 92697 USA
| | - Reza Jalli
- grid.412571.40000 0000 8819 4698Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
8
|
Mehrabi S, Rahmanian J, Jalli R. The Accuracy of Lung Ultrasonography Diagnosis of Community-Acquired Pneumonia, in an Adult Cohort. Journal of Diagnostic Medical Sonography 2022. [DOI: 10.1177/87564793221115197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective: Community-acquired pneumonia (CAP) is a common respiratory infection, and diagnosis is frequently performed using a chest radiography (CXR). Sonography is an available method with less radiation exposure, but has not been confirmed for diagnosis of CAP. The objective was to compare the diagnostic accuracy of sonography. Materials and Methods: In this cross-sectional study, 90 adult patients (aged >18 years) were admitted to the emergency department of two university-affiliated hospitals in Southwest Iran, from July to December 2019, with a confirmed diagnosis of CAP. The patient symptoms and CXR results were included as part of this study. Within 24 hours after obtaining a CXR, a lung ultrasonogram (LUS) was performed. The diagnostic accuracy of semiquantitative LUS (SQLUS) was compared with CXR results using the Pearson chi-square test and Fisher’s exact test. Results: The mean age of participants was 52.98 ± 16.77 years. 51 were men (56.7%). 28 patients (31.1%), who had abnormal SQLUS results, were not associated with CXR findings ( P = .296). SQLUS showed poor diagnostic accuracy for LUS (31.11%). Conclusion: This study results could not confirm LUS as an accurate method for diagnosing CAP in adult patients; although due to the convenient sample of adults and clinical-based diagnosis of CAP, any generalization of the results should be made with caution.
Collapse
Affiliation(s)
- Samrad Mehrabi
- Division of Pulmonology, Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Jila Rahmanian
- Division of Pulmonology, Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
9
|
Zarei F, Jalli R, Chatterjee S, Ravanfar Haghighi R, Iranpour P, Vardhan Chatterjee V, Emadi S. Evaluation of Ultra-Low-Dose Chest Computed Tomography Images in Detecting Lung Lesions Related to COVID-19: A Prospective Study. Iran J Med Sci 2022; 47:338-349. [PMID: 35919083 PMCID: PMC9339117 DOI: 10.30476/ijms.2021.90665.2165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/23/2021] [Accepted: 09/11/2021] [Indexed: 11/04/2022]
Abstract
Background The present study aimed to evaluate the effectiveness of ultra-low-dose (ULD) chest computed tomography (CT) in comparison with the routine dose (RD) CT images in detecting lung lesions related to COVID-19. Methods A prospective study was conducted during April-September 2020 at Shahid Faghihi Hospital affiliated with Shiraz University of Medical Sciences, Shiraz, Iran. In total, 273 volunteers with suspected COVID-19 participated in the study and successively underwent RD-CT and ULD-CT chest scans. Two expert radiologists qualitatively evaluated the images. Dose assessment was performed by determining volume CT dose index, dose length product, and size-specific dose estimate. Data analysis was performed using a ranking test and kappa coefficient (κ). P<0.05 was considered statistically significant. Results Lung lesions could be detected with both RD-CT and ULD-CT images in patients with suspected or confirmed COVID-19 (κ=1.0, P=0.016). The estimated effective dose for the RD-CT protocol was 22-fold higher than in the ULD-CT protocol. In the case of the ULD-CT protocol, sensitivity, specificity, accuracy, and positive predictive value for the detection of consolidation were 60%, 83%, 80%, and 20%, respectively. Comparably, in the case of RD-CT, these percentages for the detection of ground-glass opacity (GGO) were 62%, 66%, 66%, and 18%, respectively. Assuming the result of real-time polymerase chain reaction as true-positive, analysis of the receiver-operating characteristic curve for GGO detected using the ULD-CT protocol showed a maximum area under the curve of 0.78. Conclusion ULD-CT, with 94% dose reduction, can be an alternative to RD-CT to detect lung lesions for COVID-19 diagnosis and follow-up.An earlier preliminary report of a similar work with a lower sample size was submitted to the arXive as a preprint. The preprint is cited as: https://arxiv.org/abs/2005.03347.
Collapse
Affiliation(s)
- Fariba Zarei
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | - Pooya Iranpour
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vani Vardhan Chatterjee
- Department of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore, India
| | - Sedigheh Emadi
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
10
|
Mehrabani D, Nazempour M, Mehdinavaz-Aghdam R, Hashemi SS, Jalli R, Moghadam MS, Zare S, Jamhiri I, Moayedi J, Karimi-Busheri F. OUP accepted manuscript. Burns & Trauma 2022; 10:tkac018. [PMID: 36380853 PMCID: PMC9664564 DOI: 10.1093/burnst/tkac018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 01/08/2022] [Indexed: 11/22/2022]
Abstract
Background In vivo cell tracking after transplantation in regenerative medicine remains an unmet challenge and limits current understanding of the wound healing mechanism through cell-based therapies. This study investigated tracking of human Wharton’s jelly stem cells (hWJSCs) seeded onto an acellular dermal matrix (ADM) and labeled with superparamagnetic iron oxide nanoparticles (SPIONs) by magnetic resonance imaging (MRI) in burn injury. Method The hWJSCs were characterized and assessed for growth kinetics. A total of 30 rats were enrolled in three equal groups. Group 1 underwent scald burn injury left without treatment, the group 2 was treated by an ADM that was prepared from cosmetic surgery skin samples and the group 3 received hWJSCs labeled with SPIONs seeded onto an ADM. Tensile strength was evaluated before and after interventions, real time PCR assessed apoptosis, and Prussian blue staining, scanning electron microscopy (SEM) and MRI were used for the tracking of labeled cells. Results The hWJSCs exhibited mesenchymal stem cell properties. Population doubling time was 40.1 hours. SPIONs did not show any toxic effect. The hWJSCs seeded onto an ADM decreased Bax and increased Bcl-2 gene expression. Internalization of SPIONs within hWJSCs was confirmed by Prussian blue staining, SEM and MRI until day 21. There was a significant difference between the Young’s moduli of normal skin and the group receiving hWJSCs seeded onto an ADM. Histological observations and SEM imaging confirmed that MRI is an accurate method to track SPION-labeled hWJSCs in vivo. Conclusions This study showed that SPION labeling coupled with MRI can be used to further understand the fate of stem cells after transplantation in a burn model.
Collapse
Affiliation(s)
- Davood Mehrabani
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars T6G 2E1, 71348-14336, Iran
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71987-74731, Iran
- Comparative and Experimental Medicine Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran
- Li Ka Shing Center for Health Research and Innovation, University of Alberta, Edmonton, Alberta, Canada
| | - Mehra Nazempour
- Correspondence. Feridoun Karimi-Busheri, ; Seyedeh-Sara Hashemi, ; Mehra Nazempour,
| | - Rouhollah Mehdinavaz-Aghdam
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran 1417614411, Iran
| | - Seyedeh-Sara Hashemi
- Correspondence. Feridoun Karimi-Busheri, ; Seyedeh-Sara Hashemi, ; Mehra Nazempour,
| | - Reza Jalli
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran
| | - Mahdi Saeedi Moghadam
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran
| | - Shahrokh Zare
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars T6G 2E1, 71348-14336, Iran
- Department of Biochemistry, School of Biotechnology and Agriculture, Shiraz Branch, Islamic Azad University, Shiraz, Fars 71987-74731, Iran
| | - Iman Jamhiri
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars T6G 2E1, 71348-14336, Iran
| | - Javad Moayedi
- Comparative and Experimental Medicine Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran
| | | |
Collapse
|
11
|
Zarei F, Jalli R, Iranpour P, Sefidbakht S, Soltanabadi S, Rezaee M, Jahankhah R, Manafi A. Differentiation of Chest CT Findings Between Influenza Pneumonia and COVID-19: Interobserver Agreement Between Radiologists. Acad Radiol 2021; 28:1331-1338. [PMID: 34024714 PMCID: PMC8112282 DOI: 10.1016/j.acra.2021.04.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 02/08/2023]
Abstract
OBJECTIVES To investigate the chest CT and clinical characteristics of COVID-19 pneumonia and H1N1 influenza, and explore the radiologist diagnosis differences between COVID-19 and influenza. MATERIALS AND METHODS This cross-sectional study included a total of 43 COVID-19-confirmed patients (24 men and 19 women, 49.90 ± 18.70 years) and 41 influenza-confirmed patients (17 men and 24 women, 61.53 ± 19.50 years). Afterwards, the chest CT findings were recorded and 3 radiologists recorded their diagnoses of COVID-19 or of H1N1 influenza based on the CT findings. RESULTS The most frequent clinical symptom in patients with COVID-19 and H1N1 pneumonia were dyspnea (96.6%) and cough (62.5%), respectively. The CT findings showed that the COVID-19 group was characterized by GGO (88.1%), while the influenza group had features such as GGO (68.4%) and consolidation (66.7%). Compared to the influenza group, the COVID-19 group was more likely to have GGO (88.1% vs. 68.4%, p = 0.032), subpleural sparing (69.0% vs. 7.7%, p <0.001) and subpleural band (50.0% vs. 20.5%, p = 0.006), but less likely to have pleural effusion (4.8% vs. 33.3%, p = 0.001). The agreement rate between the 3 radiologists was 65.8%. CONCLUSION Considering similarities of respiratory infections especially H1N1 and COVID-19, it is essential to introduce some clinical and para clinical modalities to help differentiating them. In our study we extracted some lung CT scan findings from patients suspected to COVID-19 as a newly diagnosed infection comparing with influenza pneumonia patients.
Collapse
Affiliation(s)
- Fariba Zarei
- Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pooya Iranpour
- Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sepideh Sefidbakht
- Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sahar Soltanabadi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Rezaee
- Dermatology Department, Molecular Dermatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jahankhah
- Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Alireza Manafi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
12
|
Tabesh J, Mahdavi M, Haddadi G, Ravanfar Haghighi R, Jalli R. Determination of Diagnostic Reference Level (DRL) in Common Computed Tomography Examinations with the Modified Quality Control-Based Dose Survey Method in Four University Centers: A Comparison of Methods. J Biomed Phys Eng 2021; 11:447-458. [PMID: 34458192 PMCID: PMC8385214 DOI: 10.31661/jbpe.v0i0.2105-1322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 06/20/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The diagnostic reference level (DRL) is measured with different methods in the common Computed tomography (CT) exams, but it has not been measured through the size-specific dose estimate (SSDE) method in Iran, yet. OBJECTIVE This study aimed to calculate the local DRL (LDRL) using the new quality control-based dose survey method (QC) and patients' effective diameter (MQC) and compare them with a data collection method (DC) as well as local national DRLs (NDRL). MATERIAL AND METHODS In this cross-sectional study, LDRL, based on the third quartile of volumetric computed tomography dose index (CTDIvol) and dose length product (DLP) values, was calculated for the four common CT examinations in four CT scan centers affiliated with Shiraz University of Medical Sciences by DC, QC and MQC methods. The CTDIvol of each patient for each CT exam calculated with three methods was compared with paired t-test. Also, the LDRL using MQC method was compared with other national DRL studies. RESULTS There was a significant difference between the CTDIvol values calculated with MQC and QC in all four examinations (P <0.001). The LDRL based on CTDIvol obtained by the MQC method for head, sinus, chest, abdomen, and pelvis were (50, 18, 15, 19) mGy, respectively, and the calculated DLP values were also (735, 232, 519, 984) mGy.cm. CONCLUSION In MQC, LDRL based on CTDIvol was calculated with a mean difference percentage of (19.2 ± 11.6)% and (27.1 ± 8.1)% as compared to the QC and DC methods, respectively. This difference resulted from the use of the SSDE method and dose accuracy in the QC dose survey.
Collapse
Affiliation(s)
- Jalal Tabesh
- MSc, Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maziyar Mahdavi
- PhD, Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- PhD, Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamhasan Haddadi
- PhD, Department of Radiology, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
- PhD, Ionizing and Non-Ionizing Radiation Protection Research Center (INIRPRC), School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Reza Jalli
- MD, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
13
|
Hoseinyazdi M, Esmaeilian S, Jahankhah R, Teimouri A, Sherbaf FG, Rafiee F, Jalli R, Hooshmandi S. Clinical, laboratory, and chest CT features of severe versus non-severe pediatric patients with COVID-19 infection among different age groups. BMC Infect Dis 2021; 21:560. [PMID: 34118894 PMCID: PMC8196295 DOI: 10.1186/s12879-021-06283-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 06/03/2021] [Indexed: 12/24/2022] Open
Abstract
Background This study was performed with the intention of comparing the clinical, laboratory, and chest computed tomography (CT) findings between severe and non-severe patients as well as between different age groups composed of pediatric patients with confirmed COVID-19. Method This study was carried out on a total of 53 confirmed COVID-19 pediatric patients who were hospitalized in Namazi and Ali Asghar Hospitals, Shiraz, Iran. The patients were divided into two severe (n = 27) and non-severe (n = 28) groups as well as into other three groups in terms of their age: aged less than two years, aged 3–12 years and 13–17 years. It should be noted that CT scans, laboratory, and clinical features were taken from all patients at the admission time. Abnormal chest CT in COVID-19 pneumonia was found to show one of the following findings: ground-glass opacities (GGO), bilateral involvement, peripheral and diffuse distribution. Result Fever (79.2%) and dry cough (75.5%) were the most common clinical symptoms. Severe COVID-19 patients showed lymphocytosis, while the non-severe ones did not (P = 0.03). C-reactive protein (CRP) was shown to be significantly lower in patients aged less than two years than those aged 3–12 and 13–17 years (P = 0.01). It was shown also that O2 saturation experienced a significant increase as did patients’ age (P = 0.01). Severe patients had significantly higher CT abnormalities than non-severe patients (48.0% compared to 17.9%, respectively) (P = 0.02). Conclusion Lymphocytosis and abnormal CT findings are among the factors most associated with COVID-19 severity. It was, moreover, showed that the severity of COVID-19, O2 saturation, and respiratory distress were improved as the age of confirmed COVID-19 pediatric patients increased.
Collapse
Affiliation(s)
- Meisam Hoseinyazdi
- Medical Imaging research center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeid Esmaeilian
- Medical Imaging research center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jahankhah
- Medical Imaging research center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Arash Teimouri
- Medical Imaging research center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | | | - Faranak Rafiee
- Medical Imaging research center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging research center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sedighe Hooshmandi
- Medical Imaging research center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
14
|
Radmard AR, Gholamrezanezhad A, Montazeri SA, Kasaeian A, Nematollahy N, Molaee Langrudi R, Javad Rashid R, Dehghan A, Hekmatnia A, Shakourirad A, Pezeshki Rad M, Nafisi Moghadam R, Sharifian H, Enhesari A, Aalinezhad M, Jamalipour Soufi G, Shakibafard A, Mohammadzadeh M, Jalli R, Bakhshayeshkaram M, Faghihi Langroudi T, Raoufi M, Abrishami A, Dehghan P, Bahrami-Motlagh H, Hashemi H, Sanei Taheri M. A Multicenter Survey on the Trend of Chest CT Scan Utilization: Tracing the First Footsteps of COVID-19 in Iran. Arch Iran Med 2020; 23:787-793. [PMID: 33220698 DOI: 10.34172/aim.2020.105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 09/06/2020] [Indexed: 11/09/2022]
Abstract
BACKGROUND Chest computed tomography (CT) scan has been used widely to diagnose COVID-19 in Iran. OBJECTIVES To trace the footsteps of COVID-19 in Iran by exploring the trend in using chest CT scans and its economic impact on radiology departments. Methods: In this cross-sectional study, the number of imaging examinations from 33 tertiary radiology departments in 9 large cities of Iran was collected from September 23, 2019 to March 20, 2020 (Months 1 to 6) and the corresponding months in 2018-2019. RESULTS A 50.2% increase was noted in the chest CT scan utilization in 2019-2020 compared to 2018-2019. This increase was +15%, +15%, +27%, +2%, +1% in Months 1-5 of 2019-2020, respectively. In Month 6 of 2019-2020, a 251% increase in the acquisition of chest CT scans was observed compared to the Month 6 of 2018-2019. Following negative balance of revenue from Month 1 to 5 with respect to the inflation rate, the total income in Month 6 was further 1.5% less than the same Month in 2018-19. CONCLUSION The observed peak in chest CT utilization in Month 3 prior to the surge in Month 6 could be explained by the seasonal influenza. However, unawareness about an emerging viral disease, i.e. COVID-19, might have underutilized chest CT in Months 4 and 5 before the official announcement in Month 6. The unbalanced increase in the workload of radiology departments in the shortage of cardiothoracic radiologists with the simultaneous decrease in income initiated a vicious cycle that worsened the economic repercussions of the pandemic.
Collapse
Affiliation(s)
- Amir Reza Radmard
- Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ali Gholamrezanezhad
- Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | | | - Amir Kasaeian
- Department of Biostatistics and Epidemiology, Hematology-Oncology and Stem Cell Transplantation Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Nemat Nematollahy
- Department of Radiology, 5 Azar Hospital, Golestan University of Medical Sciences, Gorgan, Iran
| | - Roghieh Molaee Langrudi
- Diagnostic Radiology Department, Poursina Hospital, Guilan University of Medical Sciences, Rasht, Iran
| | - Reza Javad Rashid
- Department of Radiology, Imam Reza hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Dehghan
- Department of Radiology, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Hekmatnia
- Radiology Department, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ali Shakourirad
- Department of Radiology, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Pezeshki Rad
- Department of Radiology, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Nafisi Moghadam
- Department of Radiology, Shahid Sadoughi Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hashem Sharifian
- Department of Radiology, Amir A'lam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Enhesari
- Clinical Research Unit, Afzalipour Hospital, Kerman University of Medical Sciences, Kerman, Iran
| | - Marzieh Aalinezhad
- Radiology Department, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | | | - Maryam Mohammadzadeh
- Department of Radiology, Amir A'lam Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Jalli
- Department of Radiology, Namazi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrdad Bakhshayeshkaram
- Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Taraneh Faghihi Langroudi
- Department of Radiology, Shahid Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoomeh Raoufi
- Department of Radiology, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Abrishami
- Department of Radiology, Shahid Labbafinejad Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Pooneh Dehghan
- Department of Radiology, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hooman Bahrami-Motlagh
- Department of Radiology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hassan Hashemi
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Sanei Taheri
- Department of Radiology, Shohada-E-Tajrish Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
15
|
Sefidbakht S, Askarian M, Bijan B, Eghtedari M, Tahmasebi S, Zarei F, Jalli R, Iranpour P. Resuming Breast Imaging Services in the Aftermath of the COVID-19 Pandemic: Safety and Beyond. Clin Breast Cancer 2020; 21:e136-e140. [PMID: 33257273 PMCID: PMC7834332 DOI: 10.1016/j.clbc.2020.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/14/2020] [Accepted: 10/26/2020] [Indexed: 11/19/2022]
Abstract
As the Coronavirus disease 2019 (COVID-19) epidemic begins to stabilize, different medical imaging facilities not directly involved in the COVID-19 epidemic face the dilemma of how to return to regular operation. We hereby discuss various fields of concern in resuming breast imaging services. We examine the concerns for resuming functions of breast imaging services in 2 broad categories, including safety aspects of operating a breast clinic and addressing potential modifications needed in managing common clinical scenarios in the COVID-19 aftermath. Using a stepwise approach in harmony with the relative states of the epidemic, health care system capacity, and the current state of performing breast surgeries (and in compliance with the recommended surgical guidelines) can ensure avoiding pointless procedures and ensure a smooth transition to a fully operational breast imaging facility.
Collapse
Affiliation(s)
- Sepideh Sefidbakht
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrdad Askarian
- Health Behavior Science Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Community Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bijan Bijan
- Sutter Imaging (SMG)-Sacramento, Department of Nuclear Medicine and Radiology (W.O.S), University of California Davis Medical Center, Sacramento, CA
| | - Mohammad Eghtedari
- Department of Radiology, University of California San Diego Health, La Jolla, CA
| | - Sedigheh Tahmasebi
- Breast Disease Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fariba Zarei
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pooya Iranpour
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran.
| |
Collapse
|
16
|
Sefidbakht S, Lotfi M, Moghadami M, Jalli R, Shakibafard A, Iranpour P, Jafari SH, Bijan B. Recommendations on COVID-19 Computerized Tomography Study Reporting: The Need to Optimize Reporting Categories Based on Local Conditions and Available Resources. Iran J Med Sci 2020; 45:313-315. [PMID: 32801422 PMCID: PMC7395948 DOI: 10.30476/ijms.2020.86207.1596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Sepideh Sefidbakht
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrzad Lotfi
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohsen Moghadami
- Clinical Microbiology Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Pooya Iranpour
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Hamed Jafari
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Bijan Bijan
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran.,Sutter Medical Group (SMG), Sacramento, California, USA.,University of California Davis Medical Center (UCDMC), Sacramento, California, USA
| |
Collapse
|
17
|
Zeinali-Rafsanjani B, Jalli R, Saeedi-Moghadam M, Pishdad P. Magnetic resonance spectroscopy and its application in colorectal cancer diagnosis and screening: A narrative review. J Med Imaging Radiat Sci 2020; 51:654-661. [PMID: 32718849 DOI: 10.1016/j.jmir.2020.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 06/28/2020] [Accepted: 07/10/2020] [Indexed: 12/01/2022]
Abstract
There are several slightly invasive methods to detect colorectal carcinoma (CRC) including colonoscopy and sigmoidoscopy; but there is no noninvasive, accurate screening test. It is recommended to initiate screening at the age of 50 for non-familial CRC. Laboratory tests are routinely suggested if internal observation and imaging are recommended for further evaluation. Spectroscopic-based imaging, such as magnetic resonance spectroscopy (MRS) is an interesting and promising tool with the potential to be an alternative to some minimally invasive procedures, such as biopsy. Accordingly, MRS might be a suitable substitution for invasive methods, such as colonoscopy. This article aimed to review the studies that have evaluated the MRS technique as a screening tool in CRC.
Collapse
Affiliation(s)
- Banafsheh Zeinali-Rafsanjani
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Nuclear Medicine and Molecular Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahdi Saeedi-Moghadam
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Parisa Pishdad
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
18
|
Affiliation(s)
- Sepideh Sefidbakht
- Medical Imaging Research Center, Radiology Department, Shiraz University of Medical Sciences, Shiraz, Iran (the Islamic Republic of)
| | - Mehrzad Lotfi
- Medical Imaging Research Center, Radiology Department, Shiraz University of Medical Sciences, Shiraz, Iran (the Islamic Republic of)
| | - Reza Jalli
- Medical Imaging Research Center, Radiology Department, Shiraz University of Medical Sciences, Shiraz, Iran (the Islamic Republic of)
| | - Mohsen Moghadami
- Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Golnar Sabetian
- Trauma Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pooya Iranpour
- Medical Imaging Research Center, Radiology Department, Shiraz University of Medical Sciences, Shiraz, Iran (the Islamic Republic of)
| |
Collapse
|
19
|
Zeinali-Rafsanjani B, Mosleh-Shirazi MA, Faghihi R, Saeedi-Moghadam M, Lotfi M, Jalli R. A method for cranial target delineation in radiotherapy treatment planning aided by single-voxel magnetic resonance spectroscopy: evaluation using a custom-designed gel-based phantom and simulations. Br J Radiol 2019; 92:20190216. [PMID: 31556332 DOI: 10.1259/bjr.20190216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE Magnetic resonance spectroscopy (MRS) has been useful in radiotherapy treatment planning (RTP) especially in tumor delineation. Routinely, 2D/3D MRSI data are used for this application. However, not all centers have access to 2D/3D MRSI. The objective of this study was to introduce a method of using single-voxel spectroscopy (SVS) data in target delineation and assess its reliability. METHODS A gel-based phantom containing Creatine (Cr), N-acetyl-l-aspartic-acid (NAA), and Choline (Cho) was designed and built. The metabolite ratios simulate the normal and tumoral part of the brain. The jMRUI software (v. 6.0) was used to simulate a 1.5 T GE MRI scanner. The metabolite spectra provided by different time of echos (TE)s of the Point-RESolved Spectroscopy pulse-sequence (PRESS), different data-points, and post-processings were quantized by jMRUI. PseudoMRSI maps of Cho/Cr, NAA/Cr, and Cho + Cr/NAA were created. A conformity index (CI) was used to determine which metabolite-ratio isolines are more appropriate for tumor delineation. RESULTS The simulation accuracy was verified. There were no differences > 4% between the measured and simulated spectra in peak regions. The pseudoMRSI map of Cho + Cr/NAA smoothly followed the complicated geometry of the tumor inside the gel-based phantom. The results showed that the single-voxel spectra produced by the PRESS pulse sequence with the TE of 144 ms, 512 data-points, and minimum post-processings of water suppression, eddy current correction, and baseline correction can be used for target delineation. CONCLUSION This study suggests that SVS data can be used to aid target delineation by using a mathematical approach. This can enable a wider use of MR-derived information in radiotherapy. ADVANCES IN KNOWLEDGE To the best of our knowledge, until now, 2D or 3D MRSI data provided from 3T MRI scanners have been used for MRS-based radiotherapy treatment planning. However, there are a lot of centers that are equipped to 1.5 T MRI scanners and some of them just equipped to SVS. This study introduces a mathematical approach to help these centers to take the benefits of MRS-based treatment planning.
Collapse
Affiliation(s)
- Banafsheh Zeinali-Rafsanjani
- Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran.,Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
| | - Mohammad Amin Mosleh-Shirazi
- Ionizing and Nonionizing Radiation Protection Research Center, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran.,Radiotherapy and Oncology Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Faghihi
- Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University, Shiraz, Iran.,Radiation research center, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
| | - Mahdi Saeedi-Moghadam
- Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran
| | - Mehrzad Lotfi
- Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran
| | - Reza Jalli
- Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran
| |
Collapse
|
20
|
Zare S, Mehrabani D, Jalli R, Saeedi Moghadam M, Manafi N, Mehrabani G, Jamhiri I, Ahadian S. MRI-Tracking of Dental Pulp Stem Cells In Vitro and In Vivo Using Dextran-Coated Superparamagnetic Iron Oxide Nanoparticles. J Clin Med 2019; 8:E1418. [PMID: 31505807 PMCID: PMC6780915 DOI: 10.3390/jcm8091418] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/04/2019] [Accepted: 09/05/2019] [Indexed: 12/26/2022] Open
Abstract
The aim of this study was to track dental pulp stem cells (DPSCs) labeled with dextran-coated superparamagnetic iron oxide nanoparticles (SPIONs) using magnetic resonance imaging (MRI). Dental pulp was isolated from male Sprague Dawley rats and cultured in Dulbecco's modified Eagle's medium F12 (DMEM-F12) and 10% fetal bovine serum. Effects of SPIONs on morphology, viability, apoptosis, stemness, and osteogenic and adipogenic differentiation of DPSCs were assessed. Prussian blue staining and MRI were conducted to determine in vitro efficiency of SPIONs uptake by the cells. Both non-labeled and labeled DPSCs were adherent to culture plates and showed spindle-shape morphologies, respectively. They were positive for osteogenic and adipogenic induction and expression of cluster of differentiation (CD) 73 and CD90 biomarkers, but negative for expression of CD34 and CD45 biomarkers. The SPIONs were non-toxic and did not induce apoptosis in doses less than 25 mg/mL. Internalization of the SPIONs within the DPSCs was confirmed by Prussian blue staining and MRI. Our findings revealed that the MRI-based method could successfully monitor DPSCs labeled with dextran-coated SPIONs without any significant effect on osteogenic and adipogenic differentiation, viability, and stemness of DPSCs. We provided the in vitro evidence supporting the feasibility of an MRI-based method to monitor DPSCs labeled with SPIONs without any significant reduction in viability, proliferation, and differentiation properties of labeled cells, showing that internalization of SPIONs within DPSCs were not toxic at doses less than 25 mg/mL. In general, the SPION labeling does not seem to impair cell survival or differentiation. SPIONs are biocompatible, easily available, and cost effective, opening a new avenue in stem cell labeling in regenerative medicine.
Collapse
Affiliation(s)
- Shahrokh Zare
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran.
- Department of Biochemistry, School of Biotechnology and Agriculture, Shiraz Branch, Islamic Azad University, Shiraz, Fars 71987-74731, Iran.
| | - Davood Mehrabani
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran.
- Burn and Wound Healing Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71987-74731, Iran.
- Comparative and Experimental Medicine Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran.
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2R3, Canada.
| | - Reza Jalli
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran.
| | - Mahdi Saeedi Moghadam
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran.
| | - Navid Manafi
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Tehran 14348-75451, Iran.
| | - Golshid Mehrabani
- Henry M. Goldman School of Dental Medicine, Boston University, Boston, MA 02118, USA.
| | - Iman Jamhiri
- Stem Cell Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Fars 71348-14336, Iran.
| | - Samad Ahadian
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA 90049, USA.
| |
Collapse
|
21
|
Dehbozorgi A, Eslami Nejad S, Mousavi-Roknabadi RS, Sharifi M, Tafakori A, Jalli R. Lung and cardiac ultrasound (LuCUS) protocol in diagnosing acute heart failure in patients with acute dyspnea. Am J Emerg Med 2019; 37:2055-2060. [PMID: 30833043 DOI: 10.1016/j.ajem.2019.02.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 02/24/2019] [Accepted: 02/25/2019] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE To investigate the accuracy of lung and cardiac ultrasound (LuCUS) protocol in diagnosing Acute Heart Failure (AHF) in patients who refer to Emergency Department (ED) with acute dyspnea. METHODS This was an interventional study on adult patients, who were referred with chief complaint of undifferentiated acute dyspnea to the ED of Namazi hospital, the largest referral center in southern Iran. The intervention was LuCUS protocol, which was performed by Emergency Physicians (EPs) at the bedside. All patients' files were reviewed separately by two independent specialists, who were blinded to LuCUS results for final diagnosis as gold standard, then the results of LuCUS were compared with it. All data were analyzed and diagnostic tests were calculated (α = 0.05). RESULTS In 100 patients enrolled in the study, 28% had the final diagnosis as AHF. The LuCUS protocol had the sensitivity of 64% (95%CI, 44%-81%), specificity of 97% (95%CI, 90%-100%), positive predicative value of 90% (95%CI, 69%-97%), negative predicative value of 88% (95%CI, 81%-92%), positive likelihood ratio of 23.14 (95%CI, 5.74-93.3), negative likelihood ratio of 0.37 (95%CI, 0.22-0.6), and accuracy of 88% (95%CI, 80%-94%). CONCLUSION LuCUS protocol can be used by EPs as a practical tool to differentiate the cardiac and non-cardiac etiologies of acute dyspnea, specifically AHF, as it is more accurate than clinical diagnosis by itself. Hence, it is recommend that while conducting further studies in order to achieve more generalizable results, EPs can employ it alongside their clinical evaluations to have a faster and more accurate diagnosis.
Collapse
Affiliation(s)
- Afsaneh Dehbozorgi
- Emergency Medicine Department, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran.
| | - Saman Eslami Nejad
- Emergency Medicine Department, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran
| | - Razieh Sadat Mousavi-Roknabadi
- Emergency Medicine Department, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran.
| | - Mehrdad Sharifi
- Emergency Medicine Department, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran
| | - Azadeh Tafakori
- Emergency Medicine Department, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran.
| | - Reza Jalli
- Medical Imaging Research Center, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Islamic Republic of Iran.
| |
Collapse
|
22
|
Zeinali-Rafsanjani B, Faghihi R, Mosleh-Shirazi M, Moghadam SM, Lotfi M, Jalli R, Sina S, Mina L. MRS Shimming: An Important Point Which Should not be Ignored. J Biomed Phys Eng 2018; 8:261-270. [PMID: 30320030 PMCID: PMC6169119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 12/04/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND Proton magnetic resonance spectroscopy (MRS) is a well-known device for analyzing the biological fluids metabolically. Obtaining accurate and reliable information via MRS needs a homogeneous magnetic field in order to provide well-defined peaks and uniform water suppression. There are lots of reasons which can disturb the magnetic field homogeneity which can be corrected by a process known as shimming. This study is intended to recall the importance of shimming and also the significant role of quality control (QC) in achieving an accurate quantification. MATERIAL AND METHOD An acrylic cylindrical quality control phantom was designed as an analog of brain MRS test phantoms in order to control the accuracy of the obtained signal of a 1.5 T Siemens MRI system which belonged to one of Shiraz hospitals. The signal of NAA, Cho, Cr, the combination of these metabolites and also the distilled water, which was used in this study, was evaluated using separate phantoms. A QC test was performed using Siemens QC phantom and a standard test phantom. RESULTS The spectrum of our home- made phantom had a significant difference with the expected spectrum. The results of checking the spectrum of metabolites separately also confirmed that there was a systemic problem that affects all the signals originated from all metabolites and even the pure distilled water. The MRS system could not pass QC tests, and peak broadening was common in all spectra. The complex spectrum of standard test phantom was not produced successfully by the MRS system. DISCUSSION By a simple check of the water peak characteristics, lots of information can be obtained, one of which is the status of shimming that has a considerable effect on the accuracy of the spectrum. Thus, performing an automatic or manual shimming is not a criterion of the spectrum accuracy, and performing a periodic quality control using a test phantom by a specialist is necessary. CONCLUSION Briefly, the quality control of MRS and all the other clinical device must be taken seriously. Sometimes QC can be the boundary of a right or a wrong decision for the patient.
Collapse
Affiliation(s)
- B. Zeinali-Rafsanjani
- Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
,Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran
| | - R. Faghihi
- Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
,Radiation research center, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
| | - M.A. Mosleh-Shirazi
- Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran
,Radiotherapy and Oncology Department, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeedi-M. Moghadam
- Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran
| | - M. Lotfi
- Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran
| | - R. Jalli
- Medical imaging research center, Shiraz University of medical sciences, Shiraz, Iran
| | - S. Sina
- Radiation research center, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
| | - L. Mina
- Radiology department, Faghihi hospital, Shiraz University of medical sciences, Shiraz, Iran
| |
Collapse
|
23
|
Zeinali-Rafsanjani B, Faghihi R, Mosleh-Shirazi MA, Saeedi-Moghadam M, Jalli R, Sina S. Effect of age-dependent bone electron density on the calculated dose distribution from kilovoltage and megavoltage photon and electron radiotherapy in paediatric MRI-only treatment planning. Br J Radiol 2018; 91:20170511. [PMID: 29091480 PMCID: PMC5966214 DOI: 10.1259/bjr.20170511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 10/17/2017] [Accepted: 10/26/2017] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE MRI-only treatment planning (TP) can be advantageous in paediatric radiotherapy. However, electron density extraction is necessary for dose calculation. Normally, after bone segmentation, a bulk density is assigned. However, the variation of bone bulk density in patients makes the creation of pseudo CTs challenging. This study aims to assess the effects of bone density variations in children on radiation attenuation and dose calculation for MRI-only TP. METHODS Bone contents of <15-year-old children were calculated, and substituted in the Oak Ridge National Laboratory paediatric phantoms. The percentage depth dose and beam profile of 150 kVp and 6 MV photon and 6 MeV electron beams were then calculated using Xcom, MCNPX (Monte Carlo N-particle version X) and ORLN phantoms. RESULTS Using 150 kVp X-rays, the difference in attenuation coefficient was almost 5% between an 11-year-old child and a newborn, and ~8% between an adult and a newborn. With megavoltage radiation, the differences were smaller but still important. For an 18 MV photon beam, the difference of radiation attenuation between an 11-year-old child and a newborn was 4% and ~7.4% between an adult and a newborn. For 6 MeV electrons, dose differences were observed up to the 2 cm depth. The percentage depth dose difference between 1 and 10-year-olds was 18.5%, and between 10 and 15-year-olds was 24%. CONCLUSION The results suggest that for MRI-only TP of photon- or electron-beam radiotherapy, the bone densities of each age group should be defined separately for accurate dose calculation. Advances in knowledge: This study highlights the need for more age-specific determination of bone electron density for accurate dose calculations in paediatric MRI-only radiotherapy TP.
Collapse
Affiliation(s)
- B Zeinali-Rafsanjani
- Department of Nuclear Engineering, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
| | | | | | - M Saeedi-Moghadam
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - R Jalli
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S Sina
- Radiation Research Center, School of Mechanical Engineering, Shiraz University, Shiraz, Iran
| |
Collapse
|
24
|
Jalli R, Sefidbakht S, Zeinali-Rafsanjani B, Pishdad P, Hasheminasab FS, Saeedi-Moghadam M. Evaluation of bronchiectasis in war chemically-injured patients via high resolution computed tomography. The Egyptian Journal of Radiology and Nuclear Medicine 2017. [DOI: 10.1016/j.ejrnm.2017.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
25
|
Zeinali-Rafsanjani B, Mosleh-Shirazi MA, Haghighatafshar M, Jalli R, Saeedi-Moghadam M. Assessment of the dose distribution of Minibeam radiotherapy for lung tumors in an anthropomorphic phantom: A feasibility study. Technol Health Care 2017; 25:683-692. [DOI: 10.3233/thc-170818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Banafsheh Zeinali-Rafsanjani
- Nuclear Medicine and Molecular Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Amin Mosleh-Shirazi
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Radiotherapy and Oncology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahdi Haghighatafshar
- Nuclear Medicine and Molecular Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahdi Saeedi-Moghadam
- Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
26
|
Zeinali-Rafsanjani B, Rasekhi A, Saeedi-Moghadam M, Zarei F, Jalli R, Sefidbakht S, Pishdad P. A Useful Gadget to Reduce the Radiation Dose of Interventionist's Hands. Health Phys 2017; 112:494-497. [PMID: 28350707 DOI: 10.1097/hp.0000000000000664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Increased demand for interventional radiology techniques has interventionists performing a large number of these procedures. Measurements and calculations have shown that the radiation doses received by these specialists can exceed the threshold of radiation-induced deterministic effects unless radiation protection procedures and devices are used. Proper usage of radiation protection devices can protect them from radiation-induced effects, even with a high workload. Occupational radiation protection entails proper training of interventionists to increase their awareness about available appropriate protection tools and equipment, and devices that can be used to minimize exposure, such as needle holders, tubing extensions, and injectors. This study introduces a device that can be used to fix the catheter to prevent the physician from holding the catheter by hand. The authors, also, discuss the importance of radiation protection training along with the training on new medical equipment, which can be applied to reduce the radiation dose.
Collapse
|
27
|
Pishdad P, Pishdad GR, Tavanaa S, Pishdad R, Jalli R. Thyroid Ultrasonography in Differentiation between Graves' Disease and Hashimoto's Thyroiditis. J Biomed Phys Eng 2017; 7:21-26. [PMID: 28451576 PMCID: PMC5401130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 07/10/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Graves' disease and Hashimoto's thyroiditis are the most common causes of hyper and hypothyroidism, respectively. Differentiation of these 2 diseases, if the patient is euthyroid, may sometimes be extremely difficult on the basis of clinical and laboratory findings. The purpose of this study was to determine the sensitivity and specificity of gray scale sonography in differentiation of Graves' disease from Hashimoto's thyroiditis. METHODS This study included 149 patients divided into three groups, patients with Graves' disease (34 patients, mean age = 36.8 ± 10.17 years), Patients with Hashimoto's thyroiditis (62 patients, mean age = 33.4 ± 12.16 years) and control group (53 healthy people, mean age = 34.74 ± 16.87 years). Members of all groups were referred to a single radiologist for thyroid sonography for evaluation of thyroid echogenicity pattern. RESULTS A total of 117 women and 32 men were examined by sonography. The most common sonographic pattern in Hashimoto and Graves' was homogenous hypo-echogenicity which was observed in 45.2% and 47.1% of cases, respectively. Peripheral hypo-echogenicity pattern was seen in 40.3% of Hashimoto's group with 100% specificity and 40.3% sensitivity. Central-hypoechogenic pattern was observed in 17.6% of Graves' group with 100% and 17.6% specificity and sensitivity, respectively. CONCLUSION Our findings indicate that sonography has high specificity but low sensitivity in the diagnosis of either Graves' disease or Hashimoto's thyroiditis. It is therefore not possible to differentiate between these two diseases using sonography alone. Confirmation by laboratory data is also needed.
Collapse
Affiliation(s)
- P Pishdad
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - G R Pishdad
- Endocrine and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - S Tavanaa
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - R Pishdad
- Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - R Jalli
- Medical Imaging Research Center, Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
28
|
Kavousi-Gharbi S, Jalli R, Rasekhi-Kazerouni A, Habibagahi Z, Marashi SM. Discernment scheme for paraquat poisoning: A five-year experience in Shiraz, Iran. World J Exp Med 2017; 7:31-39. [PMID: 28261553 PMCID: PMC5316902 DOI: 10.5493/wjem.v7.i1.31] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 01/05/2017] [Accepted: 01/18/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To evaluate various schemes for paraquat poisoning and different variables that influence the outcome of acute paraquat poisoning.
METHODS In a cross-sectional study, the information about all cases of acute paraquat poisoning who were admitted to teaching hospitals affiliated to Shiraz University of Medical Sciences, in a five year period (September 2010 to September 2015) were evaluated. The variables included: Demographic data, medical assessment, therapeutic options, laboratory findings, and the outcomes. Data were analyzed using SPSS, version 22. Significant difference between groups was tested using t-test for continues outcomes and χ2 test for categorical. The significance level was considered to be P < 0.05.
RESULTS A total of 104 patients (66.3% male) were evaluated. The mean age of the female patients was 22.81 ± 9.87 years and the male patients’ was 27.21 ± 11.06 years. Ninety seven (93.3%) of all the cases were suicide attempts with mortality rate of 43.2%. Despite the necessity for emergency hemodialysis during the first 6 h of intoxication, none of the patients had dialysis during this time. Immunosuppressive and corticosteroid medications were not administrated in adequate dosage in 31.1% and 60% of the patients, respectively. Ingestion of more than 22.5 cc of paraquat and increase in creatinine level were the most important predictors of mortality.
CONCLUSION Treatment should start immediately for these patients. Moreover, creating a clinical guideline according to the findings can have an impact on the treatment procedure which seems to be necessary.
Collapse
|
29
|
Jalli R, Zarei F, Farahangiz S, Khaleghi F, Petramfar P, Borhani-Haghighi A, Yadollahikhales G. The Sensitivity, Specificity, and Accuracy of Contrast-Enhanced T1-Weighted Image, T2*-Weighted Image, and Magnetic Resonance Venography in Diagnosis of Cerebral Venous Sinus Thrombosis. J Stroke Cerebrovasc Dis 2016; 25:2083-6. [DOI: 10.1016/j.jstrokecerebrovasdis.2016.01.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 01/13/2016] [Accepted: 01/24/2016] [Indexed: 10/21/2022] Open
|
30
|
Inaloo S, Khorshidi S, Jalli R, Haghbin S. Seckel Syndrome and Vasculopathy: A Case Report. J Pediatr Neurol 2016. [DOI: 10.1055/s-0036-1584278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Soroor Inaloo
- Division of Neurology, Department of Pediatrics, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soorena Khorshidi
- Department of Pediatrics, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeedeh Haghbin
- Division of Intensive Care Medicine, Department of Pediatrics, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
31
|
Mehrabani D, Mojtahed Jaberi F, Zakerinia M, Hadianfard MJ, Jalli R, Tanideh N, Zare S. The Healing Effect of Bone Marrow-Derived Stem Cells in Knee Osteoarthritis: A Case Report. World J Plast Surg 2016; 5:168-74. [PMID: 27579273 PMCID: PMC5003953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Osteoarthritis (OA) is a prevalent chronic disease impacting on quality of life and has societal and economical burden increasing with age. Yet, no confirmed pharmacological, biological or surgical therapy could prevent the progressive destruction of OA joint. Mesenchymal stem cells (MSCs) with immunosuppressive activities emerged a potential therapy. We describe a magnetic resonance images (MRI) approved 47 years old nomad female suffering from a severe right knee OA. After intra-articular injection of 36×10(6) passage 2 of bone marrow-derived stem cells (BMSCs), the patient's functional status of the knee, the number of stairs she could climb, the pain on visual analog scale (VAS) and walking distance improved after two months post-transplantation. MRI revealed an extension of the repaired tissue over subchondral bone. So as MSC transplantation is a simple technique, resulted into pain relief, minimized donor-site morbidity, provided a better quality of life, significantly improved cartilage quality with no need to hospitalization or surgery, cell transplantation can be considered as a reliable alternative treatment for chronic knee OA. Therefore these findings can be added to the literature on using BMSCs for treatment of OA.
Collapse
Affiliation(s)
- Davood Mehrabani
- Stem Cell and Transgenic Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran;,Department of Regenerative Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Fereidoon Mojtahed Jaberi
- Bone and Joint Diseases Research Center & Department of Orthopedic Surgery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Zakerinia
- Hematology Research Center & Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Javad Hadianfard
- Department of Physical Medicine and Rehabilitation, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Medical Imaging Research Center & Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran,Co-Corresponding Authors: Reza Jalli, MD; Associate Professor of Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran, Tel/Fax: +98-71-32305410, E-mail: , Fereidoon Mojtahed Jaberi, MD, Bone and Joint Diseases Research Center & Department of Orthopedic Surgery, Shiraz University of Medical Sciences, Shiraz, Iran, Tel/Fax: +98-71-32305410, E-mail:
| | - Nader Tanideh
- Stem Cell and Transgenic Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahrokh Zare
- Stem Cell and Transgenic Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
32
|
Sefidbakht S, Jalli R, Izadpanah E. Adherence of Academic Radiologists in a Non-English Speaking Imaging Center to the BI-RADS Standards of Reporting Breast MRI. J Clin Imaging Sci 2016; 5:66. [PMID: 26900490 PMCID: PMC4736065 DOI: 10.4103/2156-7514.172970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 11/04/2015] [Indexed: 11/04/2022] Open
Abstract
Objectives: To assess the adherence of academic radiologists in a university center to BI-RADS lexicon (BLA) and to evaluate the structural completeness of breast MRI reports. Materials and Methods: Breast MRI reports made during 2012 in a single academic center by six readers were scored for formal completeness (FS) including recording the MRI protocol, making relevant clinical correlation, and describing background enhancement; BLA including mass rather than lesion, describing lesion outline, enhancement characteristics, and dynamic curve; and also expressing the final conclusion using BLA, resulting in a maximal total score of 8. FS and BLA were correlated with reader characteristics including breast imaging background, years of academic experience, and number of breast MRIs reported yearly. Tests used for statistical analysis were the Mann–Whitney U test and analysis of variance (ANOVA). Results: Overall BLA was 38.9%. This percentage was 60.1% and 3.7% in radiologists with and without breast imaging background, respectively (P = 0.000). Mean FS among all readers was 3.81 ± 1.75. This score was 2.54 ± 1.1 for readers without breast imaging background and 4.6 ± 1.6 for the readers regularly involved in breast imaging (P = 0.000). Conclusions: Higher degree of BLA and higher mean FS were associated with radiologists regularly involved in breast imaging. No association was found with years of academic experience or number of breast MRIs interpreted yearly.
Collapse
Affiliation(s)
- Sepideh Sefidbakht
- Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Radiology, Trauma Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Jalli
- Department of Radiology, Trauma Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ensieh Izadpanah
- Department of Radiology, Trauma Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
33
|
Jalli R, Jafari SH, Sefidbakht S, Kazemi K. Comparison of the Accuracy of DWI and Ultrasonography in Screening Hepatocellular Carcinoma in Patients With Chronic Liver Disease. Iran J Radiol 2015; 12:e12708. [PMID: 25785178 PMCID: PMC4347758 DOI: 10.5812/iranjradiol.12708] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 07/25/2013] [Accepted: 08/18/2013] [Indexed: 02/06/2023]
Abstract
Background: Hepatocellular carcinoma (HCC) is a neoplasm usually arising in a cirrhotic liver by a multistep carcinogenesis process. Early detection of HCC and accurate assessment of tumor burden are crucial to successful treatment planning and long-term survival. Objectives: In this study, we compared the accuracy of diffusion weighted imaging (DWI) combined with limited sequence magnetic resonance imaging (MRI) set as a potentially quick and practical MR candidate with ultrasonography (US) for screening of HCC in patients with cirrhosis. Patients and Methods: Of 96 patients with cirrhosis, 30 who had concomitant HCC proved by pathology were selected. MRI, DWI, and US of the liver were performed for the patients. Sensitivity, specificity, and accuracy of DWI alone, limited sequences MRI alone, a combination of them, and US were calculated for the detection of HCC in these patients and then comparison between these modalities was performed. Results: Combination of limited sequences MRI and DWI had the highest accuracy (94.79%) followed by DWI alone followed by limited sequence MRI alone. The least accuracy was for US (78.12%) with a statistically significant difference. Conclusion: Due to the significant improvement in the treatment of early stage of HCC compared to the previous decade, we suggest a fast, non-invasive, more accurate, but more expensive method (HASTE, OP/IP T1W sequences MRI combined with DWI) rather than US for the screening of HCC in liver cirrhosis.
Collapse
Affiliation(s)
- Reza Jalli
- Colorectal Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed Hamed Jafari
- Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Corresponding author: Seyed Hamed Jafari, Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran. Tel: +98-917-3138381, Fax: +98-711-6302442, E-mail:
| | - Sepideh Sefidbakht
- Department of Radiology, Medical Imaging Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Kourosh Kazemi
- Department of General Surgery, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
34
|
Islami Parkoohi P, Jalli R, Danaei M, Khajavian S, Askarian M. Medical students' knowledge of indications for imaging modalities and cost analysis of incorrect requests, shiraz, iran 2011-2012. Iran J Med Sci 2014; 39:293-7. [PMID: 24850988 PMCID: PMC4027010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/09/2013] [Accepted: 07/21/2013] [Indexed: 11/06/2022]
Abstract
Medical imaging has a remarkable role in the practice of clinical medicine. This study intends to evaluate the knowledge of indications of five common medical imaging modalities and estimation of the imposed cost of their non-indicated requests among medical students who attend Shiraz University of Medical Sciences, Shiraz, Iran. We conducted across-sectional survey using a self-administered questionnaire to assess the knowledge of indications of a number of medical imaging modalities among 270 medical students during their externship or internship periods. Knowledge scoring was performed according to a descriptive international grade conversion (fail to excellent) using Iranian academic grading (0 to 20). In addition, we estimated the cost for incorrect selection of those modalities according to public and private tariffs in US dollars. The participation and response rate was 200/270 (74%). The mean knowledge score was fair for all modalities. Similar scores were excellent for X-ray, acceptable for Doppler ultrasonography, and fair for ultrasonography, CT scan and MRI. The total cost for non-indicated requests of those modalities equaled $104303 (public tariff) and $205581 (private tariff). Medical students at Shiraz University of Medical Sciences lacked favorable knowledge about indications for common medical imaging modalities. The results of this study have shown a significant cost for non-indicated requests of medical imaging. Of note, the present radiology curriculum is in need of a major revision with regards to evidence-based radiology and health economy concerns.
Collapse
Affiliation(s)
- Parisa Islami Parkoohi
- Department of Community Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran;
,Shiraz Anesthesiology and Critical Care Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Reza Jalli
- Medical Imaging Research Center, Department of Radiology, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Mina Danaei
- Department of Community Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran;
,Shiraz Anesthesiology and Critical Care Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Shiva Khajavian
- Student Research Committee, Department of Community Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrdad Askarian
- Department of Community Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran;
,Shiraz Anesthesiology and Critical Care Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| |
Collapse
|
35
|
Ghahramani L, Yazdani S, Derakhshani S, Rezaianzadeh A, Jalli R, Geramizadeh B, Safarpour AR, Rahimikazerooni S, Hosseini SV. Interposition of ileal j-pouch for rectum reconstruction in dog. Iran J Med Sci 2014; 39:117-22. [PMID: 24644380 PMCID: PMC3957010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 03/02/2013] [Accepted: 03/10/2013] [Indexed: 10/30/2022]
Abstract
BACKGROUND The gold standard of the management of rectal cancer in the middle and lower parts is low anterior resection with coloanal anastomosis. About 50% of the patients undergoing this procedure might experience some complications because of the low capacity of the neorectum. The aim of this study was to evaluate ileal J-pouch interposition as a neorectum between the anal canal and the remaining colon in comparison to coloanal anastomosis and transverse coloplasty. METHODS Twelve dogs, weighing 23-27 kg, were divided into three groups. After laparotomy, the volume of the primary rectum was measured so that it could be compared with that of the neorectum at the end of the study. After rectal resection in Group A, the colon was directly anastomosed to the anus. In Group B, a 5-cm longitudinal incision was made 2 cm proximal to the anastomosis and was sutured transversely (coloplasty). In Group C, a 5-cm ileal J-pouch was interposed between the colon and anus. After 8 weeks, the neorectum was evaluated for volume, radiology, and pathology. RESULTS All the samples were alive until the end of the study. The healing of the anastomotic lines was acceptable (pathologically) in all. The mean volume expansion was 20.9% in Group A, 21.7% in Group B, and 118.2% in Group C, with the latter being significantly higher than that of the other groups (P=0.03). Colon J-pouch and coloplasty after proctectomy in some situations have not been performable. This study evaluated the performance of ileal J-pouch interposition. CONCLUSION This study showed that ileal J-pouch interposition might produce an acceptable reservoir function and that it seems feasible and safe in selected cases.
Collapse
Affiliation(s)
- Leila Ghahramani
- Colorectal Research Center, Faghihi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Saeed Yazdani
- Colorectal Research Center, Faghihi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| | | | - Abbas Rezaianzadeh
- Research Center for Health Sciences, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Reza Jalli
- Department of Radiology, Nemazee Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Bita Geramizadeh
- Department of Pathology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Reza Safarpour
- Colorectal Research Center, Faghihi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Salar Rahimikazerooni
- Colorectal Research Center, Faghihi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| | - Seyed Vahid Hosseini
- Colorectal Research Center, Faghihi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran;
| |
Collapse
|
36
|
Jalli R, Kazem Hosseini-Asl M, Eshraghian A, Rezaei B. Ultrasound based techniques and transient elastography may not be precise methods for the detection of esophageal varices in liver cirrhosis. Med Ultrason 2014; 16:78-79. [PMID: 24567931 DOI: 10.11152/mu.2014.2066.161.rj1mkh2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Reza Jalli
- Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Kazem Hosseini-Asl
- Gastroenterohepatology Research Center, Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahad Eshraghian
- Gastroenterohepatology Research Center, Department of Internal Medicine, Shiraz University of Medical Sciences, Shiraz, Iran, E-mail:
| | - Bahar Rezaei
- Department of Radiology, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
37
|
Nazarinia M, Jalli R, Kamali Sarvestani E, Farahangiz S, Ataollahi M. Asymptomatic atlantoaxial subluxation in rheumatoid arthritis. Acta Med Iran 2014; 52:462-466. [PMID: 25130155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Accepted: 06/08/2013] [Indexed: 06/03/2023] Open
Abstract
This cross-sectional study is conducted to determine the prevalence of asymptomatic cervical spine subluxation in rheumatoid arthritis patients by plain radiographs and its relation to demographic and clinical characteristics, disease activity measures and medications. 100 rheumatoid arthritis patients (18 male and 82 female) were selected randomly, according to the American college of Rheumatology Criteria, who were under follow up in the rheumatology clinic. A complete history was taken, and physical examination has been done with focus on the cervical spine to determine their demographic data, disease duration, age of disease onset, drug history, swollen and tender joint counts, and ESR, Hb, CRP, RF levels. The disease activity of patients with rheumatoid arthritis was measured using the disease activity score 28. Radiographs of the cervical spine included lateral views taken in flexion, extension, neutral position of the neck and anterioposterior and odontoid projection view. Asymptomatic cervical spine subluxation was found in 17 of the 100 patients (17%). The prevalence of, anterior atlantoaxial subluxation, atlantoaxial impaction and subaxial subluxation was 10(10%), 5(5%) and 6(6%), respectively. Posterior subluxation was not detected. The only characteristic that showed meaningful relationship with cervical spine subluxation was CRP (P=0.036). Our results showed that patients with RA, who have cervical spine subluxation cannot be distinguished on the basis of symptoms. Cervical spine involvement is common and may be asymptomatic, indicating routine cervical spine imaging is needed in patients with RA.
Collapse
Affiliation(s)
- Mohammadali Nazarinia
- Shiraz Geriatric Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Reza Jalli
- Department of Radiology, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | | | - Siamak Farahangiz
- Department of Radiology, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Maryam Ataollahi
- Shiraz Geriatric Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| |
Collapse
|
38
|
Jalli R, Kamalzadeh N, Lotfi M, Farahangiz S, Salehipour M. Accuracy of sonography in detection of renal injuries caused by blunt abdominal trauma: a prospective study. ULUS TRAVMA ACIL CER 2009; 15:23-27. [PMID: 19130335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND This prospective study was conducted to evaluate the accuracy of sonography in detection of renal injuries caused by blunt abdominal trauma. METHODS One hundred sixty-four patients (131 M, 33 F) with a history of recent blunt abdominal trauma who were stable enough to undergo both sonography and CT scan were included in this study. All of the cases had accepted indications for renal imaging. Ultrasound, as simultaneous gray scale B-mode scan and color-Doppler study, was achieved in all of the patients as the first imaging modality. Considering CT scan as the imaging modality of choice in evaluation of renal injuries caused by trauma, sonography findings were compared with CT scan results. RESULTS Of the 164 patients referred for kidney sonography and CT scan, renal damage was detected in 103 cases by CT scan (63%). In 14 patients (13.5%), bilateral renal injuries were identified. Considering grading classification proposed by the American Association for the Surgery of Trauma (AAST), 57%, 24%, 9.5%, 6% and 3.5% of renal injuries were diagnosed as grade I, II, III, IV and V, respectively, by CT scan. Of the 164 patients, ultrasound results were consistent with renal damages in 66 cases (40%). Of these patients, signs of parenchymal hematoma, perinephric hematoma and pelvocaliectasis associated with internal echogenicity were the most prevalent ultrasound findings. Overall sensitivity and specificity of sonography in detection of renal injures were 48% and 96%, respectively, with a 0.8 positive predictive value, a 0.57 negative predictive value and an overall accuracy of 79%. CONCLUSION In spite of the availability and ease of performance of sonography in evaluation of trauma victims, this imaging modality has low sensitivity in detection of renal injuries and overlooks significant damages. CT scan should be considered as the diagnostic modality in victims of kidney trauma who are hemodynamically stable and have clear indications for renal imaging.
Collapse
Affiliation(s)
- Reza Jalli
- Department of Radiology, Shiraz University Faculty of Medicine, Shiraz, Iran.
| | | | | | | | | |
Collapse
|
39
|
Izadpanah A, Hosseini SV, Jalli R, Yarmohammadi H. Efficacy of endorectal ultrasonography in preoperative staging of rectal carcinoma. Saudi Med J 2005; 26:1308-10. [PMID: 16127540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Affiliation(s)
- Ahmad Izadpanah
- Division of Colorectal Surgery, Department of Surgery, Faghihi Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | | |
Collapse
|