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Pathak P, Abandeh L, Aboughalia H, Pooyan A, Mansoori B. Overview of F18-FDG uptake patterns in retroperitoneal pathologies: imaging findings, pitfalls, and artifacts. Abdom Radiol (NY) 2024:10.1007/s00261-023-04139-x. [PMID: 38652126 DOI: 10.1007/s00261-023-04139-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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 04/25/2024]
Abstract
INTRODUCTION Retroperitoneum can be the origin of a wide variety of pathologic conditions and potential space for disease spread to other compartments of the abdomen and pelvis. Computed tomography (CT) and magnetic resonance imaging (MRI) are often the initial imaging modalities to evaluate the retroperitoneal pathologies, however given the intrinsic limitations, F18-FDG PET/CT provides additional valuable metabolic information which can change the patient management and clinical outcomes. We highlight the features of retroperitoneal pathologies on F18-FDG PET/CT and the commonly encountered imaging artifacts and pitfalls. The aim of this review is to characterize primary and secondary retroperitoneal pathologies based on their metabolic features, and correlate PET findings with anatomic imaging. CONCLUSION Retroperitoneal pathologies can be complex, ranging from oncologic to a spectrum of non-oncologic disorders. While crosse-sectional imaging (CT and MRI) are often the initial imaging modalities to localize and characterize pathologies, metabolic information provided by F18-FDG PET/CT can change the management and clinical outcome in many cases.
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Affiliation(s)
- Priya Pathak
- Abdominal Imaging and Nuclear Medicine Divisions, Department of Radiology, University of Minnesota, 420 Delaware St SE, Minneapolis, MN, 55455, USA.
| | - Laith Abandeh
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - Hassan Aboughalia
- Department of Radiology, Children's National Hospital, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Atefe Pooyan
- Department of Radiology, University of Washington, Seattle, WA, USA
| | - Bahar Mansoori
- Abdominal Imaging Division, Department of Radiology, University of Washington, Seattle, WA, USA
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Pooyan A, Mansoori B, Wang C. Imaging of abdominopelvic oncologic emergencies. Abdom Radiol (NY) 2024; 49:823-841. [PMID: 38017112 DOI: 10.1007/s00261-023-04112-8] [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: 08/10/2023] [Revised: 10/18/2023] [Accepted: 10/22/2023] [Indexed: 11/30/2023]
Abstract
With advancements in cancer treatment, the survival rates for many malignancies have increased. However, both the primary tumors and the treatments themselves can give rise to various complications. Acute symptoms in oncology patients require prompt attention. Abdominopelvic oncologic emergencies can be classified into four distinct categories: vascular, bowel, hepatopancreatobiliary, and bone-related complications. Radiologists need to be familiar with these complications to ensure timely diagnosis, which ultimately enhances patient outcomes.
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Affiliation(s)
- Atefe Pooyan
- Department of Radiology, UW Radiology-Roosevelt Clinic, University of Washington, 4245 Roosevelt Way NE, Box 354755, Seattle, WA, 98105, USA
| | - Bahar Mansoori
- Department of Radiology, Section of Abdominal Imaging, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195-7115, USA
| | - Carolyn Wang
- Department of Radiology, Section of Abdominal Imaging, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195-7115, USA.
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Pathak P, Wondimu B, Jalilianhasanpour R, Pooyan A, Matesan MC, Mansoori B. Skin Malignancies: Imaging Review with Radiologic-Histopathologic Correlation. Radiographics 2023; 43:e230093. [PMID: 38032822 DOI: 10.1148/rg.230093] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Skin malignancies are commonly encountered as primary or incidental findings. Neoplasms that affect the skin include primary (basal cell carcinoma, squamous cell carcinoma, melanoma, and Merkel cell carcinoma) and secondary (mesenchymal neoplasms, lymphoma, and metastases) tumors. Imaging provides valuable anatomic information (tumor size, depth of involvement, presence of distant metastasis, and data for guiding biopsy) and functional information (metabolic activity and sentinel node mapping data). This information, in addition to biopsy results, improves the histopathologic characterization of tumors and treatment planning. Various histopathologic types of the same entity exhibit different biologic behavior and have different imaging features. Familiarity with the multimodality imaging features, histopathologic characteristics, and various modes of dissemination (direct invasion; perineural, lymphatic, and hematogenous spread) of the most common skin malignancies helps radiologists narrow the differential diagnosis in clinical practice. ©RSNA, 2023 Supplemental material is available for this article. Quiz questions for this article are available through the Online Learning Center.
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Affiliation(s)
- Priya Pathak
- From the Department of Radiology, Divisions of Abdominal Imaging and Nuclear Medicine, University of Minnesota (M-Health), 420 Delaware St SE, Minneapolis, MN 55455 (P.P.); and the Department of Pathology (B.W.); Department of Radiology (R.J., A.P.), Divisions of Nuclear Medicine (M.C.M.) and Abdominal Imaging (B.M.), University of Washington, Seattle, WA
| | - Bitania Wondimu
- From the Department of Radiology, Divisions of Abdominal Imaging and Nuclear Medicine, University of Minnesota (M-Health), 420 Delaware St SE, Minneapolis, MN 55455 (P.P.); and the Department of Pathology (B.W.); Department of Radiology (R.J., A.P.), Divisions of Nuclear Medicine (M.C.M.) and Abdominal Imaging (B.M.), University of Washington, Seattle, WA
| | - Rozita Jalilianhasanpour
- From the Department of Radiology, Divisions of Abdominal Imaging and Nuclear Medicine, University of Minnesota (M-Health), 420 Delaware St SE, Minneapolis, MN 55455 (P.P.); and the Department of Pathology (B.W.); Department of Radiology (R.J., A.P.), Divisions of Nuclear Medicine (M.C.M.) and Abdominal Imaging (B.M.), University of Washington, Seattle, WA
| | - Atefe Pooyan
- From the Department of Radiology, Divisions of Abdominal Imaging and Nuclear Medicine, University of Minnesota (M-Health), 420 Delaware St SE, Minneapolis, MN 55455 (P.P.); and the Department of Pathology (B.W.); Department of Radiology (R.J., A.P.), Divisions of Nuclear Medicine (M.C.M.) and Abdominal Imaging (B.M.), University of Washington, Seattle, WA
| | - Manuela C Matesan
- From the Department of Radiology, Divisions of Abdominal Imaging and Nuclear Medicine, University of Minnesota (M-Health), 420 Delaware St SE, Minneapolis, MN 55455 (P.P.); and the Department of Pathology (B.W.); Department of Radiology (R.J., A.P.), Divisions of Nuclear Medicine (M.C.M.) and Abdominal Imaging (B.M.), University of Washington, Seattle, WA
| | - Bahar Mansoori
- From the Department of Radiology, Divisions of Abdominal Imaging and Nuclear Medicine, University of Minnesota (M-Health), 420 Delaware St SE, Minneapolis, MN 55455 (P.P.); and the Department of Pathology (B.W.); Department of Radiology (R.J., A.P.), Divisions of Nuclear Medicine (M.C.M.) and Abdominal Imaging (B.M.), University of Washington, Seattle, WA
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Haseli S, Mansoori B, Christensen D, Abadi A, Pooyan A, Shomal Zadeh F, Mau B, Khalili N, Murphey M, Chalian M. Fibroblastic and Myofibroblastic Soft-Tissue Tumors: Imaging Spectrum and Radiologic-Pathologic Correlation. Radiographics 2023; 43:e230005. [PMID: 37440448 DOI: 10.1148/rg.230005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Fibroblastic and myofibroblastic tumors are a variable group of neoplasms ranging from benign to malignant. These lesions may affect patients of any age group but are more frequently encountered in the pediatric population. Patient clinical presentation depends on the location, growth pattern, adjacent soft-tissue involvement, and pathologic behavior of these neoplasms. In the 2020 update to the World Health Organization (WHO) classification system, these tumors are classified on the basis of their distinct biologic behavior, histomorphologic characteristics, and molecular profiles into four tumor categories: (a) benign (eg, fibrous hamartoma of infancy, nodular fasciitis, proliferative fasciitis, fibroma of the tendon sheath, calcifying aponeurotic fibroma); (b) intermediate, locally aggressive (eg, desmoid fibromatosis); (c) intermediate, rarely metastasizing (eg, dermatofibrosarcoma protuberans, myxoinflammatory fibroblastic sarcoma, low-grade myofibroblastic sarcoma, infantile fibrosarcoma); and (d) malignant (eg, sclerosing epithelioid fibrosarcomas; low-grade fibromyxoid sarcoma; myxofibrosarcoma; fibrosarcoma, not otherwise specified). Detection of various components of solid tumors at imaging can help in prediction of the presence of corresponding histopathologic variations, thus influencing diagnosis, prognosis, and treatment planning. For example, lesions with a greater myxoid matrix or necrotic components tend to show higher signal intensity on T2-weighted MR images, whereas lesions with hypercellularity and dense internal collagen content display low signal intensity. In addition, understanding the radiologic-pathologic correlation of soft-tissue tumors can help to increase the accuracy of percutaneous biopsy and allow unnecessary interventions to be avoided. ©RSNA, 2023 Quiz questions for this article are available in the supplemental material.
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Affiliation(s)
- Sara Haseli
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Bahar Mansoori
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Diana Christensen
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Alireza Abadi
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Atefe Pooyan
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Firoozeh Shomal Zadeh
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Brian Mau
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Nastaran Khalili
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Mark Murphey
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
| | - Majid Chalian
- From the Department of Radiology, Division of Musculoskeletal Imaging and Intervention (S.H., A.P., F.S.Z., M.C.), Department of Radiology, Division of Abdominal Imaging (B.M., D.C., A.A.), and Department of Laboratory Medicine and Pathology (B.M.), University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105; Cancer Immunology Project, Universal Scientific Education and Research Network, Philadelphia, Pa (N.K.); and Department of Radiologic Pathology, Armed Forces Institute of Pathology, Walter Reed Army Medical Center, Washington, DC (M.M.)
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Sumner C, Ikuta I, Garg T, Martin JG, Mansoori B, Chalian M, Englander BS, Chertoff J, Woolen S, Caplin D, Sneider MB, Desouches SL, Chan TL, Kadom N. Approaches to Greening Radiology. Acad Radiol 2023; 30:528-535. [PMID: 36114076 DOI: 10.1016/j.acra.2022.08.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [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: 07/10/2022] [Revised: 07/31/2022] [Accepted: 08/09/2022] [Indexed: 01/25/2023]
Abstract
The health care sector is a resource-intensive industry, consuming significant amounts of water and energy, and producing a multitude of waste. Health care providers are increasingly implementing strategies to reduce energy use and waste. Little is currently known about existing sustainability strategies and how they may be supported by radiology practices. Here, we review concepts and ideas that minimize energy use and waste, and that can be supported or implemented by radiologists.
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Affiliation(s)
- Christina Sumner
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - Ichiro Ikuta
- Department of Radiology & Biomedical Imaging, Yale Program for Innovation in Imaging Informatics, Department of Radiology, Yale University School of Medicine, New Haven, CT; Mayo Clinic Arizona, Phoenix, Arizona
| | - Tushar Garg
- Division of Vascular and Interventional Radiology, Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jonathan G Martin
- Department of Radiology, Duke University School of Medicine, Durham, North Carolina
| | - Bahar Mansoori
- Department of Radiology, University of Washington, Seattle, Washington
| | - Majid Chalian
- Department of Radiology, University of Washington, Seattle, Washington
| | - Brian S Englander
- Department of Radiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jocelyn Chertoff
- Department of Radiology, Dartmouth Health and the Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Sean Woolen
- Department of Radiology and Biomedical Imaging, UCSF, San Francisco, California
| | - Drew Caplin
- Division of Interventional Radiology, Donald and Barbara Zucker School of Medicine at Hofstra Northwell, New Hyde Park, New York
| | - Michael B Sneider
- Department of Radiology & Medical Imaging, University of Virginia, Charlottesville, Virginia
| | | | - Tiffany L Chan
- Department of Radiology, University of California, Los Angeles, California
| | - Nadja Kadom
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia; Department of Radiology, Children's Healthcare of Atlanta- Egleston Campus, Atlanta, Georgia.
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Revels JW, Mansoori B, Fadl S, Wang SS, Olson MC, Moran SK, Terrazas MF, Fletcher JG, Perry WRG, Chernyak V, Mileto A. MR Defecating Proctography with Emphasis on Posterior Compartment Disorders. Radiographics 2023; 43:e220119. [DOI: 10.1148/rg.220119] [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: 12/03/2022]
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7
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Mansoori B, Kosaraju V, Yoon J, Chalian H, Shomal Zadeh F, Vo KV, Shafiei M, Prabhakar R, Chalian M. Incidental osseous lesions on chest CT: an algorithmic approach for radiologists. Clin Imaging 2022; 91:69-96. [PMID: 36037551 DOI: 10.1016/j.clinimag.2022.08.015] [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: 05/19/2022] [Revised: 08/01/2022] [Accepted: 08/17/2022] [Indexed: 11/29/2022]
Abstract
Numerous osseous findings are commonly discovered incidentally at chest CTs in daily practice. A broad spectrum of these findings ranges from benign and do not touch lesions to ominous conditions requiring further imaging evaluation and/or intervention. Interpretation of these incidental musculoskeletal findings may constitute a diagnostic challenge to radiologists. This review provides a systematic, algorithmic approach to common osseous lesions on chest CT based on imaging findings with recommendations for proper next step management.
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Affiliation(s)
- Bahar Mansoori
- Division of Abdominal Imaging, Department of Radiology, University of Washington, Seattle, WA, United States of America
| | - Vijaya Kosaraju
- Division of Musculoskeletal Imaging, Department of Radiology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, United States of America
| | - James Yoon
- Department of Radiology, UT Southwestern Medical Center, Dallas, TX, United States of America
| | - Hamid Chalian
- Division of Cardiothoracic Imaging, Department of Radiology, University of Washington, Seattle, WA, United States of America
| | - Firoozeh Shomal Zadeh
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, United States of America
| | - Kiet V Vo
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, United States of America
| | - Mehrzad Shafiei
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, United States of America
| | - Rajiah Prabhakar
- Cardiovascular Imaging Section, Department of Radiology, Mayo Clinic, Rochester, MN, United States of America
| | - Majid Chalian
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, University of Washington, Seattle, WA, United States of America.
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8
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Revels JW, Moran SK, O'Malley R, Mansoori B, Revzin M, Katz DS, Moshiri M, DiSantis DJ. Upper Gastrointestinal Fluoroscopic Examination: A Traditional Art Enduring into the 21st Century. Radiographics 2022; 42:E152-E153. [PMID: 35984751 DOI: 10.1148/rg.210069] [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: 11/11/2022]
Affiliation(s)
- Jonathan W Revels
- From the Department of Radiology, University of New Mexico, Albuquerque, NM, 87131 (J.W.R.); Department of Radiology, University of Washington, Seattle, Wash (S.K.M., R.O., B.M., M.M.); Department of Radiology, Yale University School of Medicine, New Haven, Conn (M.R.); Department of Radiology, NYU Winthrop Hospital, Mineola, NY (D.S.K.); and Department of Radiology, Mayo Clinic, Jacksonville, Fla (D.J.D.)
| | - Shamus K Moran
- From the Department of Radiology, University of New Mexico, Albuquerque, NM, 87131 (J.W.R.); Department of Radiology, University of Washington, Seattle, Wash (S.K.M., R.O., B.M., M.M.); Department of Radiology, Yale University School of Medicine, New Haven, Conn (M.R.); Department of Radiology, NYU Winthrop Hospital, Mineola, NY (D.S.K.); and Department of Radiology, Mayo Clinic, Jacksonville, Fla (D.J.D.)
| | - Ryan O'Malley
- From the Department of Radiology, University of New Mexico, Albuquerque, NM, 87131 (J.W.R.); Department of Radiology, University of Washington, Seattle, Wash (S.K.M., R.O., B.M., M.M.); Department of Radiology, Yale University School of Medicine, New Haven, Conn (M.R.); Department of Radiology, NYU Winthrop Hospital, Mineola, NY (D.S.K.); and Department of Radiology, Mayo Clinic, Jacksonville, Fla (D.J.D.)
| | - Bahar Mansoori
- From the Department of Radiology, University of New Mexico, Albuquerque, NM, 87131 (J.W.R.); Department of Radiology, University of Washington, Seattle, Wash (S.K.M., R.O., B.M., M.M.); Department of Radiology, Yale University School of Medicine, New Haven, Conn (M.R.); Department of Radiology, NYU Winthrop Hospital, Mineola, NY (D.S.K.); and Department of Radiology, Mayo Clinic, Jacksonville, Fla (D.J.D.)
| | - Margarita Revzin
- From the Department of Radiology, University of New Mexico, Albuquerque, NM, 87131 (J.W.R.); Department of Radiology, University of Washington, Seattle, Wash (S.K.M., R.O., B.M., M.M.); Department of Radiology, Yale University School of Medicine, New Haven, Conn (M.R.); Department of Radiology, NYU Winthrop Hospital, Mineola, NY (D.S.K.); and Department of Radiology, Mayo Clinic, Jacksonville, Fla (D.J.D.)
| | - Douglas S Katz
- From the Department of Radiology, University of New Mexico, Albuquerque, NM, 87131 (J.W.R.); Department of Radiology, University of Washington, Seattle, Wash (S.K.M., R.O., B.M., M.M.); Department of Radiology, Yale University School of Medicine, New Haven, Conn (M.R.); Department of Radiology, NYU Winthrop Hospital, Mineola, NY (D.S.K.); and Department of Radiology, Mayo Clinic, Jacksonville, Fla (D.J.D.)
| | - Mariam Moshiri
- From the Department of Radiology, University of New Mexico, Albuquerque, NM, 87131 (J.W.R.); Department of Radiology, University of Washington, Seattle, Wash (S.K.M., R.O., B.M., M.M.); Department of Radiology, Yale University School of Medicine, New Haven, Conn (M.R.); Department of Radiology, NYU Winthrop Hospital, Mineola, NY (D.S.K.); and Department of Radiology, Mayo Clinic, Jacksonville, Fla (D.J.D.)
| | - David J DiSantis
- From the Department of Radiology, University of New Mexico, Albuquerque, NM, 87131 (J.W.R.); Department of Radiology, University of Washington, Seattle, Wash (S.K.M., R.O., B.M., M.M.); Department of Radiology, Yale University School of Medicine, New Haven, Conn (M.R.); Department of Radiology, NYU Winthrop Hospital, Mineola, NY (D.S.K.); and Department of Radiology, Mayo Clinic, Jacksonville, Fla (D.J.D.)
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Abstract
The duodenum can be affected by a variety of abnormalities because of its development during embryogenesis and its dual intra- and retroperitoneal location. If small bowel embryogenesis is disturbed, congenital errors occur. Although some congenital variants may be asymptomatic and inconsequential to the patient, other anomalies can result in life-threatening emergencies such as malrotation, leading to midgut volvulus. Many infectious processes affect the duodenum, including duodenal ulcers and opportunistic infection in patients with HIV/AIDS or Crohn disease. Small bowel malignancies are uncommon but important to recognize, because the duodenum can be involved in polyposis syndromes or the development of primary adenocarcinoma, neuroendocrine tumors, lymphoma, and metastasis. Although endoscopy is currently the most used diagnostic method to assess the lumen of the upper gastrointestinal tract, fluoroscopy is a valuable adjunct technique and the study of choice for many diseases, specifically those for which anatomic and functional information is required. Fluoroscopy is also commonly used postoperatively to assess for complications such as obstruction and extraluminal leaks. Compared with endoscopy, fluoroscopy is an inexpensive and noninvasive technique that provides salient anatomic information and allows delineation of the duodenal mucosa and assessment of real-time duodenal motility. The authors examine the broad spectrum of conditions that can involve the duodenum, including congenital, infectious, inflammatory, and neoplastic abnormalities, and review their typical appearances at fluoroscopy. Online supplemental material is available for this article. ©RSNA, 2022.
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Affiliation(s)
- Lisa N Johnson
- From the Department of Radiology, University of Washington, 1959 NE Pacific St, Seattle, WA 98195-7115 (L.N.J., S.K.M., P.B., M.M., C.A.R., B.M.); Department of Radiology, University of New Mexico, Albuquerque, NM (J.W.R.); and Department of Radiology, Vanderbilt University Medical Center, Nashville, Tenn (M.M.)
| | - Shamus K Moran
- From the Department of Radiology, University of Washington, 1959 NE Pacific St, Seattle, WA 98195-7115 (L.N.J., S.K.M., P.B., M.M., C.A.R., B.M.); Department of Radiology, University of New Mexico, Albuquerque, NM (J.W.R.); and Department of Radiology, Vanderbilt University Medical Center, Nashville, Tenn (M.M.)
| | - Puneet Bhargava
- From the Department of Radiology, University of Washington, 1959 NE Pacific St, Seattle, WA 98195-7115 (L.N.J., S.K.M., P.B., M.M., C.A.R., B.M.); Department of Radiology, University of New Mexico, Albuquerque, NM (J.W.R.); and Department of Radiology, Vanderbilt University Medical Center, Nashville, Tenn (M.M.)
| | - Jonathan W Revels
- From the Department of Radiology, University of Washington, 1959 NE Pacific St, Seattle, WA 98195-7115 (L.N.J., S.K.M., P.B., M.M., C.A.R., B.M.); Department of Radiology, University of New Mexico, Albuquerque, NM (J.W.R.); and Department of Radiology, Vanderbilt University Medical Center, Nashville, Tenn (M.M.)
| | - Mariam Moshiri
- From the Department of Radiology, University of Washington, 1959 NE Pacific St, Seattle, WA 98195-7115 (L.N.J., S.K.M., P.B., M.M., C.A.R., B.M.); Department of Radiology, University of New Mexico, Albuquerque, NM (J.W.R.); and Department of Radiology, Vanderbilt University Medical Center, Nashville, Tenn (M.M.)
| | - Charles A Rohrmann
- From the Department of Radiology, University of Washington, 1959 NE Pacific St, Seattle, WA 98195-7115 (L.N.J., S.K.M., P.B., M.M., C.A.R., B.M.); Department of Radiology, University of New Mexico, Albuquerque, NM (J.W.R.); and Department of Radiology, Vanderbilt University Medical Center, Nashville, Tenn (M.M.)
| | - Bahar Mansoori
- From the Department of Radiology, University of Washington, 1959 NE Pacific St, Seattle, WA 98195-7115 (L.N.J., S.K.M., P.B., M.M., C.A.R., B.M.); Department of Radiology, University of New Mexico, Albuquerque, NM (J.W.R.); and Department of Radiology, Vanderbilt University Medical Center, Nashville, Tenn (M.M.)
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Haseli S, Mansoori B, Shafiei M, Shomal Zadeh F, Chalian H, Khoshpouri P, Yousem D, Chalian M. A Review of Posteromedial Lesions of the Chest Wall: What Should a Chest Radiologist Know? Diagnostics (Basel) 2022; 12:diagnostics12020301. [PMID: 35204391 PMCID: PMC8871555 DOI: 10.3390/diagnostics12020301] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/11/2022] [Accepted: 01/20/2022] [Indexed: 12/10/2022] Open
Abstract
A heterogeneous group of tumors can affect the posteromedial chest wall. They form diverse groups of benign and malignant (primary or secondary) pathologies that can arise from different chest wall structures, i.e., fat, muscular, vascular, osseous, or neurogenic tissues. Chest radiography is very nonspecific for the characterization of chest wall lesions. The modality of choice for the initial assessment of the chest wall lesions is computed tomography (CT). More advanced cross-sectional modalities such as magnetic resonance imaging (MRI) and positron emission tomography (PET) with fluorodeoxyglucose are usually used for further characterization, staging, treatment response, and assessment of recurrence. A systematic approach based on age, clinical history, and radiologic findings is required for correct diagnosis. It is essential for radiologists to be familiar with the spectrum of lesions that might affect the posteromedial chest wall and their characteristic imaging features. Although the imaging findings of these tumors can be nonspecific, cross-sectional imaging helps to limit the differential diagnosis and determine the further diagnostic investigation (e.g., image-guided biopsy). Specific imaging findings, e.g., location, mineralization, enhancement pattern, and local invasion, occasionally allow a particular diagnosis. This article reviews the posteromedial chest wall anatomy and different pathologies. We provide a combination of location and imaging features of each pathology. We will also explore the role of imaging and its strengths and limitations for diagnosing posteromedial chest wall lesions.
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Affiliation(s)
- Sara Haseli
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
| | - Bahar Mansoori
- Department of Radiology, Division of Abdominal Imaging, University of Washington, Seattle, WA 98105, USA;
| | - Mehrzad Shafiei
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
| | - Firoozeh Shomal Zadeh
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
| | - Hamid Chalian
- Department of Radiology, Division of Cardiothoracic Imaging, University of Washington, Seattle, WA 98105, USA;
| | - Parisa Khoshpouri
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
| | - David Yousem
- Russell H. Morgan Department of Radiology and Radiological Sciences, Division of Neuroradiology, Johns Hopkins Medical Center, Baltimore, MD 21287, USA;
| | - Majid Chalian
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
- Correspondence: ; Tel.: +1+(206)-598-2405
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11
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Grimm LJ, Ballard DH, Beckman NM, Mansoori B, Solnes LB, Sodagari F, Zohrabian VM. Geographic Trends in Publications and Submissions in Radiology Journals: Decade Report (2010 - 2020). Acad Radiol 2022; 29:1248-1254. [PMID: 35031153 DOI: 10.1016/j.acra.2021.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 12/09/2021] [Accepted: 12/14/2021] [Indexed: 12/23/2022]
Abstract
RATIONALE AND OBJECTIVE The Radiology Research Alliance (RRA) of the Association of University Radiologists (AUR) organized a task force to quantify geographic changes in submissions to and publications within radiology journals over time. MATERIALS AND METHODS Twenty journals were selected: 7 US-based general, 4 European-based general, and 9 subspecialty radiology journals. Journals were solicited for submissions and publications based on country of origin from 2010 -2020. Regression models assessed changes over time across countries, and by continent, with an emphasis on the US and China, for each journal category. RESULTS There were 104,679 publications and 92,446 submissions from 149 countries. Overall, there were significant increases in numbers of publications from Asia (R2 = 0.66, p <0.01), and specifically, China (R2 = 0.87, p <0.01). For US journals, there were increased numbers of publications from Asia (R2 = 0.72, p <0.01) and China (R2 = 0.98, p <0.01), but decreased numbers from North America (R2 = 0.41, p = 0.03). For European journals, there were increased numbers of publications from Asia (R2 = 0.79, p <0.01), North America (R2 = 0.75, p <0.01), and China (R2 = 0.82, p <0.01). For subspecialty journals, there were increased numbers of publications from North America (R2 = 0.38, p = 0.04) and China (R2 = 0.73, p <0.01). There was an acute COVID spike in submissions during 2020, with a continuous increase most notable in China (R2 = 0.96, p <0.01). CONCLUSION In the last decade, the numbers of submissions to and publications within general and subspecialty US and European radiology journals have generally increased around the world, with the largest growth in Asia and in particular China.
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12
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Dinh TKT, Parker EU, Gangadhar K, Mansoori B, Dyer BA. Management of locally advanced mesonephric carcinoma of the cervix in the setting of Mullerian Duct anomaly spectrum and unilateral renal agenesis: A case report and review of the literature. Brachytherapy 2021; 20:1180-1186. [PMID: 34521573 DOI: 10.1016/j.brachy.2021.08.002] [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] [Received: 06/02/2021] [Revised: 07/29/2021] [Accepted: 08/01/2021] [Indexed: 11/26/2022]
Abstract
Cervical mesonephric adenocarcinoma is a rare histologic cervical carcinoma variant arising from remnants of the mesonephric duct. Few clinical cases have been reported in the literature, and given the low rate of occurrence, the optimal management strategy is unknown. Most reported cases involve patients with either early stage (FIGO I) or metastatic disease. Herein, we report the only known case of locally advanced, node-positive cervical mesonephric carcinoma in a 55-year old woman with Mullerian duct anomaly of the uterus, obstructed hemivagina, and ipsilateral renal agenesis. To our knowledge, this would be the first case report with the concurrence of both rare entities. We review the treatment paradigm in this patient, and the literature, including radiotherapy and brachytherapy techniques.
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Affiliation(s)
- Tru-Khang T Dinh
- Department of Radiation Oncology, University of Washington, Seattle, WA
| | - Elizabeth U Parker
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA
| | - Kiran Gangadhar
- Department of Radiology, Abdominal Imaging Division, University of Washington, Seattle, WA
| | - Bahar Mansoori
- Department of Radiology, Abdominal Imaging Division, University of Washington, Seattle, WA
| | - Brandon A Dyer
- Department of Radiation Oncology, University of Washington, Seattle, WA.
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13
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Mansoori B, Golnari P, Sharifi A, Khoshpouri P, Chalian H, Herrmann K, Chalian M. Ultrasound Training in Radiology Residency Programs: A National Survey. J Ultrasound Med 2021; 40:731-740. [PMID: 32856741 DOI: 10.1002/jum.15443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 05/28/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES Comprehensive training in ultrasound (US) imaging during radiology residency is crucial if radiologists are expected to maintain a substantial role in this widely used imaging modality. This study aimed to evaluate the current curriculum of US training among radiology residency programs across the country via a nationwide survey. METHODS A 28-question survey was distributed among all academic radiology departments in the United States and their radiology residents. The survey consisted of 4 sections: general demographic information, training information, clinical competency, and adequacy of training (perspective). The Student t test and 1-way analyses of variance were performed to assess statistical significance. RESULTS Overall, 256 residents from 32 states completed the questionnaire. Only 114 (45%) residents reported having a dedicated rotation for performing US studies. Although 228 (89%) of trainees believed they received adequate experience for interpreting US studies, only 66 (26%) of them had the same belief about performing them. Only 116 (45%) of the residents were comfortable operating the US machines in their departments. Higher years of residency training, having a dedicated rotation for performing US studies, and having more than 10 hours per year of didactic lectures and/or more than 5 hours per year of case conferences dedicated to US had a positive impact on the residents' clinical competency and perspective (all P < .05). CONCLUSIONS Most radiology residents do not feel confident in performing US examinations by themselves. However, higher clinical competency was reported in the residents who had dedicated rotations for performing US studies and received more hours of US lectures and case conferences throughout their residency.
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Affiliation(s)
- Bahar Mansoori
- Department of Radiology, University of Washington Medical Center, Seattle, Washington, USA
| | - Pedram Golnari
- Department of Radiology, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA
| | - Arghavan Sharifi
- School of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Pegah Khoshpouri
- Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Hamid Chalian
- Department of Radiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Karin Herrmann
- Department of Radiology, University Hospitals, Case Western Reserve Medical Center, Cleveland, Ohio, USA
| | - Majid Chalian
- Department of Radiology, University of Washington Medical Center, Seattle, Washington, USA
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Nguyen V, Lindley AR, Mansoori B, Godfrey EM. Phleboliths mistaken for intraperitoneal copper-containing intrauterine device in the presence of missing strings. BMJ Case Rep 2021; 14:14/3/e237838. [PMID: 33753376 PMCID: PMC7986942 DOI: 10.1136/bcr-2020-237838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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] [Indexed: 11/03/2022] Open
Abstract
Although rare, pelvic phleboliths may confound the diagnosis of an intraperitoneal or malpositioned intrauterine device (IUD). Pelvic phleboliths are focal calcifications in pelvic veins, often in multiples near the ureters, occurring in about 40% of adult patients. We treated a 35-year-old woman requesting removal of her copper-containing IUD (TCu380A IUD). She had missing IUD strings on clinical examination. A clinic-based transvaginal ultrasound and anteroposterior abdominal radiograph that followed suggested prior TCu380A IUD expulsion. A radiologist later interpreted several ambiguous radiodensities in the abdominal radiograph as a possible intraperitoneal or malpositioned IUD. In collaboration with radiologists and family planning specialists, it was suggested that the patient further undergo a three-dimensional ultrasonography and a CT of the pelvis. The radiodensities first noted on the radiograph were revealed to be phleboliths, a diagnostic possibility not initially considered by any of the primary clinical care team, radiologists or family planning specialists.
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Affiliation(s)
- Viet Nguyen
- Family Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | - Alexa R Lindley
- Family Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | - Bahar Mansoori
- Radiology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Emily Maria Godfrey
- Family Medicine, University of Washington School of Medicine, Seattle, Washington, USA
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15
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Li L, Shiradkar R, Leo P, Algohary A, Fu P, Tirumani SH, Mahran A, Buzzy C, Obmann VC, Mansoori B, El-Fahmawi A, Shahait M, Tewari A, Magi-Galluzzi C, Lee D, Lal P, Ponsky L, Klein E, Purysko AS, Madabhushi A. A novel imaging based Nomogram for predicting post-surgical biochemical recurrence and adverse pathology of prostate cancer from pre-operative bi-parametric MRI. EBioMedicine 2020; 63:103163. [PMID: 33321450 PMCID: PMC7744939 DOI: 10.1016/j.ebiom.2020.103163] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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: 09/03/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 01/10/2023] Open
Abstract
Background We developed and validated an integrated radiomic-clinicopathologic nomogram (RadClip) for post-surgical biochemical recurrence free survival (bRFS) and adverse pathology (AP) prediction in men with prostate cancer (PCa). RadClip was further compared against extant prognostics tools like CAPRA and Decipher. Methods A retrospective study of 198 patients with PCa from four institutions who underwent pre-operative 3 Tesla MRI followed by radical prostatectomy, between 2009 and 2017 with a median 35-month follow-up was performed. Radiomic features were extracted from prostate cancer regions on bi-parametric magnetic resonance imaging (bpMRI). Cox Proportional-Hazards (CPH) model warped with minimum redundancy maximum relevance (MRMR) feature selection was employed to select bpMRI radiomic features for bRFS prediction in the training set (D1, N = 71). In addition, a bpMRI radiomic risk score (RadS) and associated nomogram, RadClip, were constructed in D1 and then compared against the Decipher, pre-operative (CAPRA), and post-operative (CAPRA-S) nomograms for bRFS and AP prediction in the testing set (D2, N = 127). Findings “RadClip yielded a higher C-index (0.77, 95% CI 0.65-0.88) compared to CAPRA (0.68, 95% CI 0.57-0.8) and Decipher (0.51, 95% CI 0.33-0.69) and was found to be comparable to CAPRA-S (0.75, 95% CI 0.65-0.85). RadClip resulted in a higher AUC (0.71, 95% CI 0.62-0.81) for predicting AP compared to Decipher (0.66, 95% CI 0.56-0.77) and CAPRA (0.69, 95% CI 0.59-0.79).” Interpretation RadClip was more prognostic of bRFS and AP compared to Decipher and CAPRA. It could help pre-operatively identify PCa patients at low risk of biochemical recurrence and AP and who therefore might defer additional therapy. Funding The National Institutes of Health, the U.S. Department of Veterans Affairs, and the Department of Defense.
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Affiliation(s)
- Lin Li
- Center for Computational Imaging and Personalized Diagnostics, Case Western Reserve University, Cleveland, OH, USA
| | - Rakesh Shiradkar
- Center for Computational Imaging and Personalized Diagnostics, Case Western Reserve University, Cleveland, OH, USA
| | - Patrick Leo
- Center for Computational Imaging and Personalized Diagnostics, Case Western Reserve University, Cleveland, OH, USA
| | - Ahmad Algohary
- Center for Computational Imaging and Personalized Diagnostics, Case Western Reserve University, Cleveland, OH, USA
| | - Pingfu Fu
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | | | - Amr Mahran
- Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Christina Buzzy
- Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Verena C Obmann
- Department of Radiology, Case Western Reserve University and University Hospitals Cleveland Medical Centers, Cleveland, OH, USA; Department of Diagnostic, Interventional and Pediatric Radiology (DIPR), Inselspital, Bern University Hospital, University of Bern, Switzerland
| | - Bahar Mansoori
- Department of Radiology, Abdominal Imaging Division, University of Washington, Seattle, WA, USA
| | - Ayah El-Fahmawi
- Penn Medicine, University of Pennsylvania Health System, PA, USA
| | - Mohammed Shahait
- Penn Medicine, University of Pennsylvania Health System, PA, USA
| | - Ashutosh Tewari
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | - David Lee
- Penn Medicine, University of Pennsylvania Health System, PA, USA
| | - Priti Lal
- Penn Medicine, University of Pennsylvania Health System, PA, USA
| | - Lee Ponsky
- Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, USA; Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Eric Klein
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Andrei S Purysko
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA; Imaging Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Anant Madabhushi
- Center for Computational Imaging and Personalized Diagnostics, Case Western Reserve University, Cleveland, OH, USA; Louis Stokes Cleveland Veterans Administration Medical Center, USA.
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16
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Rahimi Z, Modirsanei M, Mansoori B. The effect of enzymatic feed pretreatment on bioavailability of phytate phosphorous, performance, and bone indices of tibia in broilers. J APPL POULTRY RES 2020. [DOI: 10.1016/j.japr.2019.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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17
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Mansoori B, Vasan V, Xi Y, Fielding JR. Variations in use of "water soluble contrast challenge" for small bowel obstruction among academic radiologists: results of a national survey. Abdom Radiol (NY) 2020; 45:1050-1056. [PMID: 32052131 DOI: 10.1007/s00261-020-02436-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To assess the frequency and indications for use of oral water-soluble contrast challenge as a diagnostic test for small bowel obstruction in four regions of the USA. MATERIALS AND METHODS We distributed a 9-question web-based survey to the abdominal section heads of academic radiology departments throughout the USA (N = 97). The questions pertained to use of water-soluble contrast for management of small bowel obstruction. Descriptive statistics and Fisher's exact tests were used for data analysis. RESULTS The overall response rate was 46%. Eighty percent of the responding hospitals had more than 500 beds in operation. Water-soluble contrast challenge was considered standard of care for management of non-operative small bowel obstruction in 60% of the responding radiology departments. The majority of the responding departments (41%) performed 2-8 contrast challenge studies per month on average. The most frequent indication for the study was distinguishing partial vs complete bowel obstruction. Eighty percent of the responding radiologists believed that the contrast challenge is useful for management of small bowel obstruction. Overall, there was no statistically significant difference in frequency and indication for use of water-soluble contrast challenge based on geographic location. CONCLUSION The water-soluble contrast challenge was considered standard of care for non-operative management of small bowel obstruction in majority of the academic radiology departments represented in this survey. Surgeons were referring clinicians in every case. The most common clinical indication for the study was distinguishing partial versus complete small bowel obstruction.
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Affiliation(s)
- Bahar Mansoori
- Abdominal Imaging Division, Department of Radiology, University of Washington Medical Center, Seattle, WA, USA.
| | - Vasantha Vasan
- Abdominal Imaging Division, Department of Radiology, University of Texas, Southwestern Medical Center, Dallas, TX, USA
| | - Yin Xi
- Abdominal Imaging Division, Department of Radiology, University of Texas, Southwestern Medical Center, Dallas, TX, USA.,Department of Population and Data Sciences, University of Texas, Southwestern Medical Center, Dallas, TX, USA
| | - Julia R Fielding
- Abdominal Imaging Division, Department of Radiology, University of Texas, Southwestern Medical Center, Dallas, TX, USA
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18
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Basirat A, Boothe E, Mazal AT, Mansoori B, Chalian M. Soft tissue mycetoma: "Dot-in-circle" sign on magnetic resonance imaging. Radiol Case Rep 2020; 15:467-473. [PMID: 32123555 PMCID: PMC7036743 DOI: 10.1016/j.radcr.2020.01.024] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/10/2020] [Accepted: 01/20/2020] [Indexed: 11/09/2022] Open
Abstract
A 36-year-old Mexican female with a slowly growing foot mass was referred to orthopedic surgery clinic for further evaluation. Foot magnetic resonance imaging revealed an infiltrative soft tissue mass along the dorsal aspect of the fourth metatarsal. T2-weighted images revealed multiple central low-signal “dots” surrounded by areas of bright signal intensity, known as the “dot-in-circle” sign, which is highly specific for mycetoma. Surgical biopsy confirmed the diagnosis of bacterial mycetoma in this patient. Mycetoma can lead to progressive deformity and loss of function, as well as possible limb amputation in the case of delayed diagnosis or misdiagnosis. The “dot-in-circle” sign on magnetic resonance imaging can assist in rendering a final diagnosis and distinguish mycetoma from other etiologies of a soft tissue mass, such as a sarcoma or benign soft tissue lesions.
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Affiliation(s)
- Aida Basirat
- School of Medicine, University of Texas, Southwestern Medical Center, Dallas, TX
| | - Ethan Boothe
- Department of Radiology, Musculoskeletal Imaging Division, University of Texas Southwestern Medical Center, Dallas, TX
| | - Alexander T Mazal
- School of Medicine, University of Texas, Southwestern Medical Center, Dallas, TX
| | - Bahar Mansoori
- Department of Radiology, Abdominal Imaging Division, University of Washington, Seattle, WA
| | - Majid Chalian
- Department of Radiology, Musculoskeletal Imaging Division, University of Washington, UW Radiology-Roosevelt Clinic, 4245 Roosevelt Way NE, Box 354755, Seattle, WA 98105, USA
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19
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Obmann VC, Chalian M, Mansoori B, Sanchez E, Gulani V. Advantages of time-resolved contrast-enhanced 4D MR angiography in splenic arterial steal syndrome. Clin Imaging 2018; 49:169-173. [PMID: 29558712 DOI: 10.1016/j.clinimag.2018.03.003] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 02/01/2018] [Accepted: 03/01/2018] [Indexed: 01/17/2023]
Abstract
Splenic artery steal syndrome (SASS) is a severe complication affecting up to 10% of orthotopic liver transplant (OLT) patients. In this case report, we present a 35-year-old male with OLT secondary to liver failure due to hemochromatosis, who developed SASS. We describe potential application of different imaging techniques for diagnosis of SASS with focus on the value of time-resolved contrast enhanced 4D magnetic resonance angiography (MRA).
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Affiliation(s)
- Verena C Obmann
- Department of Radiology, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH, United States; Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital Bern, Bern University Hospital, University of Bern, Bern, Switzerland.
| | - Majid Chalian
- Department of Radiology, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
| | - Bahar Mansoori
- Department of Radiology, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH, United States.
| | - Edmund Sanchez
- Division of Hepatobiliary and Transplant Surgery, University Hospitals Cleveland Medical Center Transplant Institute, Cleveland, OH, United States.
| | - Vikas Gulani
- Department of Radiology, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, OH, United States.
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20
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Goldar S, Baradaran B, Shekari Khaniani M, Azadmehr A, Derakhshan SM, Mohammadi A, Mansoori B, Khaze V, Shanehbandi D, Mohammadnejad L, Baghbani E. Extracts of Scrophularia frigida Boiss display potent antitumor effects in human breast cancer cells by inducing apoptosis and inhibition of expression of the human epidermal growth factor receptor 2. Cell Mol Biol (Noisy-le-grand) 2016; 62:83-89. [PMID: 27755942] [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: 06/14/2016] [Accepted: 08/14/2016] [Indexed: 06/06/2023]
Abstract
Some species of the Scrophularia genus have been extensively used as a natural remedy for treatment of various medical conditions. The objective of this study was to evaluate the growth inhibitory activity of Scrophularia frigida Boiss extracts as well as to study the effect of the potent extracts on the induction of apoptosis and cell cycle arrest on human breast cancer cells. S. frigida Boiss extracts exhibited obvious inhibitory effects on the growth of cancer cells and induced apoptosis. It is suggested that the extracts exert their anti-proliferative effect through multiple implications such as suppressing growth, arresting the cell cycle, increased DNA fragmentation, downregulation of the expression of human epidermal growth factor receptor 2 and myeloid cell Leukemia-1, and upregulation of pro-apoptotic messenger RNAs like caspase-3 and caspase-9. Taken together, the results obtained indicate that S. frigida Boiss extracts may contain effective compounds that can be used as a therapeutic anticancer agent.
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Affiliation(s)
- S Goldar
- Tabriz University of Medical Sciences Drug Applied Research Center Tabriz Iran
| | - B Baradaran
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M Shekari Khaniani
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - A Azadmehr
- Babol University of Medical Sciences Division of Immunology, Faculty of Medicine Babol Iran
| | - S M Derakhshan
- Tabriz University of Medical Sciences Department of Medical Genetics, Faculty of Medicine Tabriz Iran
| | - A Mohammadi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Mansoori
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - V Khaze
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - D Shanehbandi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - L Mohammadnejad
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - E Baghbani
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
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21
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Mohammadi A, Mansoori B, Aghapour M, Baradaran B. Urtica dioica dichloromethane extract induce apoptosis from intrinsic pathway on human prostate cancer cells (PC3). Cell Mol Biol (Noisy-le-grand) 2016; 62:78-83. [PMID: 27064877] [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: 11/11/2015] [Accepted: 03/24/2016] [Indexed: 06/05/2023]
Abstract
Prostate cancer is considered as the major cause of death among men around the world. There are a number of medicinal plants triggering apoptosis response in cancer cells, thus have a therapeutic potential. Therefore, further studies to characterize beneficial properties of these plants in order to introduce novel anti-cancer drugs are the interest of recent researches on the alternative medicine. On the other hand, due to traditional uses and availability of Urtica dioica extract, we decided to evaluate the efficacy of this medicinal herb on pc3 prostate cancer cell line. In the present study the cytotoxic effects of Urtica dioica extract were assessed by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay and trypan blue viability dye. Then, DNA fragmentation and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay were exploited to measure cell death and apoptosis stage. The expression levels of caspase 3, caspase 9 and Bcl-2 genes were quantified by Real-Time PCR. Finally, Cell cycle was analyzed by flow cytometry. MTT assay showed that dichloromethanolic extract of Urtica dioica significantly inhibited the cell growth. According to the DNA fragmentation and TUNEL assay results, the herbal extract was able to induce apoptosis in prostate cancer cells. Our findings also demonstrated that the plant extract substantially increases the caspase 3 and 9 mRNA expression, while decreases Bcl-2. Cell cycle arrest was occurred in G2 stage, due to the results of flow cytometry. These results indicate that dichloromethanolic extract of Urtica dioica can successfully induce apoptosis in PC3 cells. Therefore, it could be used as a novel therapeutic candidate for prostate tumor treatment.
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Affiliation(s)
- A Mohammadi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Mansoori
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M Aghapour
- University of Tabriz Department of pathobiology, faculty of veterinary medicine Tabriz Iran
| | - B Baradaran
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
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Mohammadi A, Mansoori B, Goldar S, Shanehbandi D, Khaze V, Mohammadnejad L, Baghbani E, Baradaran B. Effects of Urtica dioica dichloromethane extract on cell apoptosis and related gene expression in human breast cancer cell line (MDA-MB-468). Cell Mol Biol (Noisy-le-grand) 2016; 62:62-67. [PMID: 26950453] [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: 11/11/2015] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
Breast cancer is the most common cancer among women in worldwide, especially in developing countries. Therefore, a large number of anticancer agents with herbal origins have been reported against this deadly disease. This study is the first to examine the cytotoxic and apoptotic effects of Urtica dioica in MDA-MB-468, human breast adenocarcinoma cells. The 3-(4,5-dimethylethiazol-2 yl)-2,5- diphenyltetrazolium (MTT) reduction and trypan-blue exclusion assay were performed in MDA-MB-468 cells as well as control cell line L929 to analyze the cytotoxic activity of the dichloromethane extract. In addition, Apoptosis induction of Urtica dioica on the MDA-MB-468 cells was assessed using TUNEL (terminal deoxy transferase (TdT)-mediated dUTP nick- end labeling) assay and DNA fragmentation analysis and real-time polymerase chain reaction (PCR). The results showed that the extract significantly inhibited cell growth and viability without inducing damage to normal control cells. Nuclei Staining in TUNEL and DNA fragments in DNA fragmentation assay and increase in the mRNA expression levels of caspase-3, caspase-9, decrease in the bcl2 and no significant change in the caspase-8 mRNA expression level, showed that the induction of apoptosis was the main mechanism of cell death that induce by Urtica dioica extract. Our results suggest that urtica dioica dichloromethane extract may contain potential bioactive compound(s) for the treatment of breast adenocarcinoma.
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Affiliation(s)
- A Mohammadi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Mansoori
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - S Goldar
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - D Shanehbandi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - V Khaze
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - L Mohammadnejad
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - E Baghbani
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Baradaran
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
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Mansoori B, Delaney CP, Willis JE, Paspulati RM, Ros PR, Schmid-Tannwald C, Herrmann KA. Magnetic resonance enterography/enteroclysis in acquired small bowel diverticulitis and small bowel diverticulosis. Eur Radiol 2015; 26:2881-91. [PMID: 26597545 DOI: 10.1007/s00330-015-4098-0] [Citation(s) in RCA: 11] [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: 11/09/2014] [Revised: 08/10/2015] [Accepted: 10/28/2015] [Indexed: 12/27/2022]
Abstract
PURPOSE Small bowel (SB) diverticulosis is a rare disorder that may entail serious complications, including SB diverticulitis. Both are often missed in imaging. Magnetic resonance enterography/enteroclysis (MRE) is increasingly used to assess SB disease; awareness of the appearance of SB diverticulitis is essential to ensure appropriate management. Our aim was to systematically describe imaging characteristics of SB diverticulosis and diverticulitis in MRE. METHODS This retrospective, HIPAA-compliant study identified 186 patients with suspected SB diverticulosis/diverticulitis in medical databases of two tertiary medical centres between 2005 and 2011. Patients with surgically confirmed diagnoses of SB diverticulosis/diverticulitis were included. Two observers analyzed MR images for the presence, location, number, and size of diverticula, wall thickness, and mural and extramural patterns of inflammation. RESULTS Seven patients were recruited. MRI analysis showed multiple diverticula in all (100 %). Diverticular size ranged from 0.5 to 6 cm. Prevalence of diverticula was higher in the proximal than the distal SB (jejunum 86 %, ileum 57 %, distal ileum43%). Diverticulitis occurred in 3/7 patients (43 %) showing asymmetric bowel wall thickening and focal mesenteric inflammation. CONCLUSION SB diverticulitis demonstrates characteristic MRE imaging features to distinguish this rare disorder from more common diseases. Asymmetric, focal mesenteric and mural inflammation and presence of multiple diverticula are keys to diagnosis. KEY POINTS • Small bowel diverticulosis and diverticulitis is rare and often missed in imaging • Acquired small bowel diverticula are variable in size and number • Small bowel diverticulitis demonstrates characteristic features on MR enterography/enteroclysis • A focal or segmental asymmetric small bowel inflammation should prompt the search for diverticula.
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Affiliation(s)
- Bahar Mansoori
- Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH, USA
| | - Conor P Delaney
- Department of Surgery, Division of Colorectal Surgery, University Hospitals Case Medical Center, Cleveland, OH, USA
| | - Joseph E Willis
- Department of Pathology, University Hospitals Case Medical Center, Cleveland, OH, USA
| | - Raj M Paspulati
- Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH, USA.,Department of Radiology, Case Western Reserve University, Cleveland, OH, USA
| | - Pablo R Ros
- Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH, USA.,Department of Radiology, Case Western Reserve University, Cleveland, OH, USA
| | | | - Karin A Herrmann
- Department of Radiology, University Hospitals Case Medical Center, Cleveland, OH, USA. .,Department of Radiology, Case Western Reserve University, Cleveland, OH, USA. .,University Hospitals Case Medical Center, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH, 44106, USA.
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24
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Mansoori B, Mohammadi A, Shirjang S, Baradaran B. Micro-RNAs: The new potential biomarkers in cancer diagnosis, prognosis and cancer therapy. Cell Mol Biol (Noisy-le-grand) 2015; 61:1-10. [PMID: 26475381] [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: 05/20/2015] [Accepted: 09/29/2015] [Indexed: 06/05/2023]
Abstract
MicroRNAs (miRNAs) are a large class of small noncoding RNAs approximately 22 nucleotides in length. They are the main regulators of gene expression, regulating specific oncogenes, tumor suppressors, cancer stem cells and metastasis. MicroRNAs have become valuable to cancer research in recent years. They appear as a significant biomarker in tumorigenesis. Briefly, the capacities of miRNA to identify between tumor and normal tissue, to distinguish between various subgroups of tumors and to foretell results or responses to therapy have attracted scientist's attention to these small RNAs. MicroRNAs' remarkable stability in both the tissue and bloodstream of cancer patients has elevated the possibility that miRNAs may prove to be a novel diagnostic biomarker. This review focuses on the utility of miRNAs as key biomarkers in cancer diagnosis, cancer prognosis and cancer therapy.
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Affiliation(s)
- B Mansoori
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - A Mohammadi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - S Shirjang
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Baradaran
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran behzad_im@yahoo.com
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25
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Yarmohammadi H, Mansoori B, Wong V, Tacher V, Wilkins LR, Pavlidakey PG, Haaga JR. Squamous cell carcinoma arising from ovarian mature cystic teratoma and causing small bowel obstruction. J Cancer Res Ther 2015; 10:770-2. [PMID: 25313782 DOI: 10.4103/0973-1482.136051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Malignant transformation of mature cystic teratoma (MCT) is a rare phenomenon with incidence of approximately 1-3%. We report a 48-year-old woman who presented to the emergency room with symptoms of bowel obstruction. She underwent computed tomography scan for the evaluation of obstruction, which demonstrated diffuse ascites accompanying a cystic pelvic to lower abdominal mass which had invaded into the adjacent small bowel causing partial small bowel obstruction. Histologically, the mass demonstrated a MCT within which aroused a well-differentiated squamous cell carcinoma. Exploratory laparotomy was performed to confirm the diagnosis and debulking of the mass was performed.
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Affiliation(s)
- Hooman Yarmohammadi
- Department of Radiology, Interventional Radiology Center, Johns Hopkins Medical Institute, Baltimore, Maryland, United States of America
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26
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Montazami N, Kheir Andish M, Majidi J, Yousefi M, Yousefi B, Mohamadnejad L, Shanebandi D, Estiar MA, Khaze V, Mansoori B, Baghbani E, Baradaran B. siRNA-mediated silencing of MDR1 reverses the resistance to oxaliplatin in SW480/OxR colon cancer cells. Cell Mol Biol (Noisy-le-grand) 2015; 61:98-103. [PMID: 26025411] [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: 04/22/2015] [Accepted: 05/18/2015] [Indexed: 06/04/2023]
Abstract
One of the most challenging aspects of colon cancer therapy is rapid acquisition of multidrug resistant phenotype. The multidrug resistance gene 1 (MDR1) product, p—glycoprotein (P—gp), pump out a variety of anticancer agents from the cell, giving rise to a general drug resistance against chemotherapeutic agents. The aim of this study was to investigate the effect of a specific MDR1 small interference RNA (siRNA) on sensitivity of oxaliplatin—resistant SW480 human colon cancer cell line (SW480/OxR) to the chemotherapeutic drug oxaliplatin. SW480 cells were made resistant by continuous incubation with stepwise serially increased concentrations of oxaliplatin over a 6—months period. Resistance cell were subsequently transfected with specific MDR1 siRNA. Relative MDR1 mRNA expression was measured by Quantitative real—time PCR. Western blot analysis was performed to determine the protein levels of P—gp. The cytotoxic effects of oxaliplatin and MDR1 siRNA, alone and in combination were assessed using MTT and the number of apoptotic cells was determined with the TUNEL assay. MDR1 siRNA effectively reduced MDR1 expression in both mRNA and protein levels. MDR1 down—regulation synergistically increased the cytotoxic effects of oxaliplatin and spontaneous apoptosis SW480/OxR. Our data demonstrates that RNA interference could down regulate MDR1 gene expression and reduce the P—gp level, and partially reverse the drug resistance in SW480/OxR cells in vitro. Therefore, the results could suggest that MDR1 silencing may be a potent adjuvant in human colon chemotherapy.
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Affiliation(s)
- N Montazami
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M Kheir Andish
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine Department of Immunology Tehran Iran
| | - J Majidi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M Yousefi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Yousefi
- Tabriz University of Medical Sciences Student Research Committee Tabriz Iran
| | - L Mohamadnejad
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - D Shanebandi
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - M A Estiar
- School of Medicine, Tehran University of Medical Sciences Department of Medical Genetics Tehran Iran
| | - V Khaze
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - B Mansoori
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran
| | - E Baghbani
- Faculty of Medicine, Semnan University of Medical Sciences Department of Immunology Semnan Iran
| | - B Baradaran
- Tabriz University of Medical Sciences Immunology Research Center Tabriz Iran behzad_im@yahoo.com
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Mansoori B, Rogiewicz A, Slominski BA. The effect of canola meal tannins on the intestinal absorption capacity of broilers using a D-xylose test. J Anim Physiol Anim Nutr (Berl) 2015; 99:1084-93. [PMID: 25865561 DOI: 10.1111/jpn.12320] [Citation(s) in RCA: 11] [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: 09/09/2014] [Accepted: 03/03/2015] [Indexed: 12/20/2022]
Abstract
In three D-xylose absorption experiments, the effect of 1% HCl/methanol, 70% methanol or 70% acetone extracts of canola meal (CM) or 70% acetone extract of soybean meal (SBM) containing polyphenols, phenolic acids, tannins and phytic acid on intestinal absorption capacity of broilers was determined. In Exp. 1, the experimental groups received orally D-xylose solution alone or with methanol/HCl, methanol or acetone extracts of CM. In Exp. 2, the experimental groups received D-xylose alone or with acetone extracts of CM or SBM. In Exp. 3, the experimental groups received D-xylose plus sucrose solution or D-xylose plus acetone extracts of CM or SBM. In Exps. 2 and 3, the CM extracts contained 2.7 and 2.6, 2.4 and 2.3, 3.2 and 3.2, and 2.4 and 2.2 times higher polyphenols, phenolic acids, tannins and condensed tannins than the corresponding SBM extracts respectively. Blood samples were collected in 40-min intervals, and plasma D-xylose was measured. Compared to the Control, plasma D-xylose in Exp. 1 was lower (p < 0.001) by 81, 69 and 73% at 40-min, by 41, 44 and 37% at 80-min and by 22, 31, and 23% at 120-min post-ingestion of the HCl/methanol, methanol and acetone extracts respectively. In both Exps. 2 and 3, plasma D-xylose level was lower (p < 0.001) in groups dosed with CM extract or SBM extract at each time of blood collection, when compared to the respective Control group. However, in Exp. 3, birds dosed with SBM extract had higher plasma D-xylose than CM extract-dosed birds by 28, 8 and 21% at 40, 80 and 120 min respectively (p < 0.01). In conclusion, although CM extract caused a lower absorption of D-xylose, based on 5 to 10% of CM inclusion levels in practical broiler rations, the soluble bioactive components of CM will likely have minor impact on the absorption capacity of the chicken intestine.
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Affiliation(s)
- B Mansoori
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada.,Department of Animal and Poultry Health and Nutrition, University of Tehran, Tehran, Iran
| | - A Rogiewicz
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - B A Slominski
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
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Mansoori B, Rosipko B, Erhard KK, Sunshine JL. Design and implementation of disaster recovery and business continuity solution for radiology PACS. J Digit Imaging 2014; 27:19-25. [PMID: 23917863 DOI: 10.1007/s10278-013-9625-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
In the digital era of radiology, picture archiving and communication system (PACS) has a pivotal role in retrieving and storing the images. Integration of PACS with all the health care information systems e.g., health information system, radiology information system, and electronic medical record has greatly improved access to patient data at anytime and anywhere throughout the entire enterprise. In such an integrated setting, seamless operation depends critically on maintaining data integrity and continuous access for all. Any failure in hardware or software could interrupt the workflow or data and consequently, would risk serious impact to patient care. Thus, any large-scale PACS now have an indispensable requirement to include deployment of a disaster recovery plan to ensure secure sources of data. This paper presents our experience with designing and implementing a disaster recovery and business continuity plan. The selected architecture with two servers in each site (local and disaster recovery (DR) site) provides four different scenarios to continue running and maintain end user service. The implemented DR at University Hospitals Health System now permits continuous access to the PACS application and its contained images for radiologists, other clinicians, and patients alike.
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Affiliation(s)
- Bahar Mansoori
- Department of Radiology, University Hospitals Case Medical Center, 11100 Euclid Avenue, Cleveland, OH, 44106, USA
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29
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Partovi S, Chalian M, Fergus N, Kosmas C, Zipp L, Mansoori B, Ros PR, Robbin MR. Magnetic Resonance/Positron Emission Tomography (MR/PET) Oncologic Applications: Bone and Soft Tissue Sarcoma. Semin Roentgenol 2014; 49:345-52. [DOI: 10.1053/j.ro.2014.04.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Novak RD, Novak NJ, Gilkeson R, Mansoori B, Aandal GE. A comparison of computer-aided detection (CAD) effectiveness in pulmonary nodule identification using different methods of bone suppression in chest radiographs. J Digit Imaging 2014; 26:651-6. [PMID: 23341178 DOI: 10.1007/s10278-012-9565-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
This study aimed to compare the diagnostic effectiveness of computer-aided detection (CAD) software (OnGuard™ 5.2) in combination with hardware-based bone suppression (dual-energy subtraction radiography (DESR)), software-based bone suppression (SoftView™, version 2.4), and standard posteroanterior images with no bone suppression. A retrospective pilot study compared the diagnostic performance of two commercially available methods of bone suppression when used with commercially available CAD software. Chest images from 27 patients with computed tomography (CT) and pathology-proven malignant pulmonary nodules (8-34 mm) and 25 CT-negative patient controls were used for analysis. The Friedman, McNemar, and chi-square tests were used to compare diagnostic performance and the kappa statistic was used to evaluate method agreement. The average number of regions of interest and false-positives per image identified by CAD were not found to be significantly different regardless of the bone suppression methods evaluated. Similarly, the sensitivity, specificity, and test efficiency were not found to be significantly different. Agreement between the methods was between poor and excellent. The accuracy of CAD (OnGuard™, version 5.2) is not statistically different with either DESR or SoftView™ (version 2.4) bone suppression technology in digital chest images for pulmonary nodule identification. Low values for sensitivity (<80 %) and specificity (<50 %) may limit their utility for clinical radiology.
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Affiliation(s)
- Ronald D Novak
- Department of Radiology, School of Medicine, Case Western Reserve University, Cleveland, USA.
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Novak RD, Mansoori B, Sivit CJ, Ros PR. The cost of doing business in academic radiology departments. Radiol Manage 2013; 35:26-37. [PMID: 24303644] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study identifies the major sources of overhead fees/costs and subsidies in academic radiology departments (ARDs) in the US and determines the differences between them based on geographic location or the size of their affiliated hospital. ARDs in the Northeast had the highest level of financial support from their affiliated hospitals when compared to those in the South/Southwest; however, a greater number of Midwest ARDs receive high levels of funding for teaching from their medical schools when compared to the northeast. Significantly fewer ARDs affiliated with hospitals of less than 200 beds receive subsidies for their activities when compared to those affiliated with larger hospitals. Differences in levels of overhead costs/ subsidies available to ARDs are associated with either geographic location or the size of the affiliated hospital. The reasons for these differences may be related to a variety of legal, contractual, or fiscal factors. Investigation of existing geographic and affiliate size fiscal differences and their causes by ARDs may be of benefit.
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Affiliation(s)
- Ronald D Novak
- Department of Radiology, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
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Herrmann KA, Kohan AA, Gaeta MC, Rubbert C, Vercher-Conejero JL, Paspulati RM, Antonis K, Mansoori B, Faulhaber PF, Avril N, Ros PR. PET/MRI: Applications in Clinical Imaging. Curr Radiol Rep 2013. [DOI: 10.1007/s40134-013-0021-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Mansoori B, Novak RD, Sivit CJ, Ros PR. Utilization of Dashboard Technology in Academic Radiology Departments: Results of a National Survey. J Am Coll Radiol 2013; 10:283-288.e3. [PMID: 23545086 DOI: 10.1016/j.jacr.2012.09.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 09/21/2012] [Indexed: 11/25/2022]
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Arabkhazaeli F, Modrisanei M, Nabian S, Mansoori B, Madani A. Evaluating the resistance of eimeria spp. Field isolates to anticoccidial drugs using three different indices. Iran J Parasitol 2013; 8:234-41. [PMID: 23914236 PMCID: PMC3724148] [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: 12/25/2012] [Accepted: 04/11/2013] [Indexed: 11/02/2022]
Abstract
BACKGROUND In this study, the presence of resistance to diclazuril, amprolium+ethopabate and salinomycin, representing some of the commonest anticoccidials in Iran's poultry industry, against three mixed Eimeria field isolates were investigated. METHODS Three Eimeria field isolates, collected from typical broiler farms in Iran, were propagated once, inoculated to 480 broilers, comprising 30 chicks in each treatment. The non-medicated or medicated diets containing one of the above mentioned anticoccidials were provided ad-lib. Drug efficacy was determined using the Global index (GI), Anticoccidial Sensitivity Test (AST) and Optimum Anticoccidial Activity (OAA). RESULTS None of the field isolates were fully sensitive to the selected anticoccidials. All isolates showed reduced sensitivity/partial resistance to salinomycin. Resistance to amprolium+ethopabate was evident and partial to complete resistance was recorded for diclazuril. CONCLUSION Limited efficacy of the selected anticoccidials is obvious. Considering the cost of continuous use of anticoccidials in the field, altering the prevention strategy and rotation of the anticoccidials with better efficacy, would prevent further economic losses induced by coccidiosis.
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Affiliation(s)
- F Arabkhazaeli
- Department of Pathobiology, Faculty of Veterinary Medicine, University of Tehran, Iran
| | - M Modrisanei
- Department of Animal and Poultry Health and Nutrition, Faculty of Veterinary Medicine, University of Tehran, Iran,Corresponding author:
| | - S Nabian
- Department of Pathobiology, Faculty of Veterinary Medicine, University of Tehran, Iran
| | - B Mansoori
- Department of Animal and Poultry Health and Nutrition, Faculty of Veterinary Medicine, University of Tehran, Iran
| | - A Madani
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Tehran, Iran
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Hashemieh M, Mansoori B, Tavakoli R, Sheibani K. A case of concurrent proteus syndrome and hemophilia a. Iran J Pediatr 2012; 22:255-9. [PMID: 23056896 PMCID: PMC3446058] [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: 01/09/2011] [Revised: 05/13/2011] [Accepted: 07/26/2011] [Indexed: 11/05/2022]
Abstract
BACKGROUND Proteus syndrome is a very rare condition with less than 100 confirmed cases reported worldwide. We report a case of Proteus syndrome in a two-year-old male who has hemophilia A comorbidity. CASE PRESENTATION A two-year-old male patient was admitted with the chief complaint of severe bleeding in mouth cavity after trauma for two weeks. At admission he was found to have petechiae on buccal mucosa and fecal discoloration due to GI bleeding. We noted multiple abnormalities in his musculoskeletal system and skin. He had lymph edema in left leg, hemihypertrophy, macrodactyly in both foots and macrocephaly. With the history of severe bleeding and recurrent blood product transfusion, we suspected a hemorrhagic disorder. The reduced level of Factor VIII activity confirmed the diagnosis of hemophilia A. Considering patient's various musculoskeletal abnormalities according to the diagnostic criteria and after ruling out similar disorders the diagnosis of Proteus syndrome was established. CONCLUSION Because of the variability of clinical features, Proteus syndrome can be confused with other disorders of multiple tissue overgrowth. Our case of Proteus syndrome, who had hemophilia A comorbidity outlines the challenges in diagnosis of such rare combination of diseases.
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Affiliation(s)
- Mozhgan Hashemieh
- Department of Pediatrics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahar Mansoori
- Clinical Research and Development Center, Imam Hossein Medical Center, Tehran, Iran
| | - Reza Tavakoli
- Department of Orthopedics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Koroush Sheibani
- Clinical Research and Development Center, Imam Hossein Medical Center, Tehran, Iran
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Mansoori B, Erhard KK, Sunshine JL. Picture Archiving and Communication System (PACS) implementation, integration & benefits in an integrated health system. Acad Radiol 2012; 19:229-35. [PMID: 22212425 DOI: 10.1016/j.acra.2011.11.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 11/18/2011] [Accepted: 11/18/2011] [Indexed: 10/14/2022]
Abstract
The availability of the Picture Archiving and Communication System (PACS) has revolutionized the practice of radiology in the past two decades and has shown to eventually increase productivity in radiology and medicine. PACS implementation and integration may bring along numerous unexpected issues, particularly in a large-scale enterprise. To achieve a successful PACS implementation, identifying the critical success and failure factors is essential. This article provides an overview of the process of implementing and integrating PACS in a comprehensive health system comprising an academic core hospital and numerous community hospitals. Important issues are addressed, touching all stages from planning to operation and training. The impact of an enterprise-wide radiology information system and PACS at the academic medical center (four specialty hospitals), in six additional community hospitals, and in all associated outpatient clinics as well as the implications on the productivity and efficiency of the entire enterprise are presented.
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Mansoori B, Modirsanei M. The effect of tannic acid and polyethylene glycol on the absorption capacity of chicken intestine for d-xylose and β-carotene. J Anim Physiol Anim Nutr (Berl) 2011; 96:47-51. [PMID: 21244522 DOI: 10.1111/j.1439-0396.2010.01120.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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In an experiment, the possible influence of tannic acid (TA) and polyethylene glycol (PEG) on the absorption capacity of intestine for d-xylose and β-carotene in broiler chicken was investigated. Four groups of nine 28-day-old broiler cockerels received d-xylose (500 mg) and β-carotene (52 μg) solutions (Group 1 to 4) with TA (1 g, Group 2 to 4) and PEG (500 mg Group 3 and 1 g Group 4), orally. One blood sample prior to, and four others after the administration of test materials, were collected from wing vein on 40 min basis, for 160 min and the concentration of plasma d-xylose was determined. The concentration of β-carotene was also measured in plasma of blood samples taken prior to and 160 min post-administration of the test materials. Plasma d-xylose concentration of all groups showed quadratic correlations with time (p < 0.001, r(2) = 0.84, 0.60, 0.70 and 0.74 for Group 1 to 4, respectively). Administration of TA reduced the plasma concentration of d-xylose in Group 2. However, feeding PEG after TA raised the concentration of d-xylose in Group 4 to the level that there was no difference in that variable between this group and Group 1. Although the plasma concentration of β-carotene was increased in 160 min post-ingestion of the test material, no difference was found in that variable among the experimental groups. In conclusion, TA and its interaction with PEG have impacts on the absorption capacity of intestine for d-xylose and highly likely other simple sugars, but TA or PEG have no influence on the absorption of β-carotene and most probably other fat soluble vitamins.
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Affiliation(s)
- B Mansoori
- Department of Animal and Poultry Health and Nutrition, Faculty of Veterinary Medicine, University of Tehran, Azadi Avenue, Tehran, Iran.
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Abstract
1. Dietary phytic acid (PA) reduces the apparent digestion and of dietary nutrients, increases the excretion of endogenous amino acids and minerals and reduces the concentration of blood glucose. 2. An experiment was conducted to examine the effect of phytic acid on the absorption capacity of the intestine in broiler chicken, using a D-xylose absorption test. 3. Three groups of ten 26-d-old apparently healthy broiler cockerels (Ross 308) were dosed with D-xylose solution (500 mg/kg BW, Group 1) or D-xylose solution + PA (330 or 660 mg/5 ml/bird, in groups 2 and 3), respectively. The plasma concentration of D-xylose was measured at 40-min intervals after ingestion of test materials, for a total of 160 min. 4. There was a quadratic correlation between the concentration of plasma D-xylose and time in all experimental groups (P < 0001, R(2)= 078, 080 and 081 for groups 1-3, respectively). Ingestion of PA at 660 mg reduced the concentration of plasma D-xylose by 216 and 105% at 40 and 80 min after ingestion of the test material, indicating a lower absorption of this sugar. 5. It was concluded that dietary phytates might affect the productive performance of chicken, at least partly, by disturbing the transport mechanisms involved in the absorption of nutrients.
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Affiliation(s)
- B Mansoori
- Department of Animal and Poultry Health and Nutrition, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
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Mansoori B, Acamovic T. Influence of tannic acid and polyethylene glycol on the excretion and digestibility of amino acids in gelatin-fed broilers. Br Poult Sci 2009; 50:199-206. [DOI: 10.1080/00071660902736714] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mansoori B, Nodeh H, Modirsanei M, Rahbari S, Aparnak P. d-Xylose absorption test: A tool for the assessment of the effect of anticoccidials on the intestinal absorptive capacity of broilers during experimental coccidiosis. Anim Feed Sci Technol 2009. [DOI: 10.1016/j.anifeedsci.2008.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Mansoori B, Modirsanei M, Radfar M, Kiaei M, Farkhoy M, Honarzad J. Digestibility and metabolisable energy values of dried tomato pomace for laying and meat type cockerels. Anim Feed Sci Technol 2008. [DOI: 10.1016/j.anifeedsci.2007.06.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mansoori B, Nodeh H, Modirsanei M, Kiaei MM, Farkhoy M. Influence of dietary tannic acid and polyethylene glycol on growth and intestinal D-xylose absorption of broiler cockerels and activity of serum enzymes. Br Poult Sci 2007; 48:489-95. [PMID: 17701502 DOI: 10.1080/00071660701449261] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
1. In an experiment on broiler cockerels, the influence of tannic acid (TA) and polyethylene glycol (PEG) on body weight gain (BWG), feed conversion ratio (FCR), weight of intestine and liver, the activities of serum enzymes LDH, AST, ALT and intestinal absorption function were investigated. 2. Broiler cockerels were given either a commercial diet alone (control group) or a commercial diet with TA (20 g/kg), PEG (10 g/kg) or TA plus PEG (20 + 10 g/kg), for 10 d. 3. On the last day of the experiment, all birds and remaining feed were weighed individually and a sample of blood was taken to measure the serum activities of lactate dehydrogenase (LDH), aspartate aminotransferase (AST) and alanine aminotransferase (ALT). The capacity of intestinal cells for the absorption of D-xylose was measured. Finally all birds were killed humanely and the intestine and liver were weighed. 4. The results showed that TA significantly reduced BWG and FCR, as well as the activity of LDH, AST and ALT. 5. TA also increased the relative weight of the intestine. Adding PEG alone had no effect on any of the measured parameters. 6. However, PEG improved significantly BWG, FCR and the activity of LDH and AST of TA-fed birds. 7. The plasma D-xylose concentration of experimental birds was similar for all dietary treatments most likely because of temporal separation between feeding the dietary TA and administering the D-xylose. 8. It was concluded that the presence of tannins in the GI lumen of the bird was necessary to affect the processes involved in the absorption of simple sugars such as D-xylose, at the level of intestinal absorptive cells.
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Affiliation(s)
- B Mansoori
- Department of Animal and Poultry Health and Nutrition, University of Tehran, Tehran, Iran.
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Mansoori B, Nodeh H, Modirsanei M, Kiaei M, Farkhoy M. Evaluating the influence of tannic acid alone or with polyethylene glycol on the intestinal absorption capacity of broiler chickens, using d-xylose absorption test. Anim Feed Sci Technol 2007. [DOI: 10.1016/j.anifeedsci.2007.01.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Mansoori B, Acamovic T. Real dry matter and nitrogen digestibility: further correction of true dry matter and nitrogen digestibility of proteins in tube fed birds, using uric acid-corrected nitrogen values. Br Poult Sci 1998; 39 Suppl:S35-6. [PMID: 10188035 DOI: 10.1080/00071669888241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- B Mansoori
- Department of Agriculture, University of Aberdeen, Scotland
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Volmer DA, Mansoori B, Locke SJ. Study of 4-quinolone antibiotics in biological samples by short-column liquid chromatography coupled with electrospray ionization tandem mass spectrometry. Anal Chem 1997; 69:4143-55. [PMID: 9337593 DOI: 10.1021/ac970425c] [Citation(s) in RCA: 138] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Simultaneous detection and confirmation of 15 quinolone antibiotics was accomplished by fast short-column liquid chromatography coupled with electrospray ionization tandem mass spectrometry (LC/MS/MS). Several physiochemical parameters such as hydrophobicity and aqueous dissociation constants were calculated from the structural formulas of the quinolone drugs, and their impact on both chromatographic and mass spectrometric behavior was studied. Additionally, a possible influence of bulk solution pH on electrospray detection sensitivity of 4-quinolones was investigated and compared to predictions based on solution-phase equilibria. A signal intensity comparison of the MH+ ions at different pH values for all 15 compounds did not reveal any pH effect, despite variations by several orders of magnitude in equilibrium concentrations in bulk solution. To demonstrate the potential of the LC/MS/MS method, its application to trace analysis in several biological matrices such as milk, salmon, and human urine was investigated. The method was shown to be sensitive with detection limits down to 1 ppb in both milk and salmon tissue. The versatility of the method was also exhibited by utilizing it for rapid identification of urinary metabolites of ciprofloxacin. Finally, a new complementary approach is described for confirmatory analyses of 4-quinolones by means of a quasi-MS/MS/MS technique involving in-source collision-induced dissociation. It is shown that LC/quasi-MS/MS/MS can significantly enhance structural information and, thus, the specificity of analysis for the investigated 4-quinolones.
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Affiliation(s)
- D A Volmer
- Institute for Marine Biosciences, National Research Council, Halifax, Nova Scotia, Canada
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