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Britton I, Bradbury C, Srinivas S, Balasubramaniam R, Dale M, Morley-Davies A, Bednall R. CTC service heterogeneity and design of a workforce calculator. Clin Radiol 2023:S0009-9260(23)00144-7. [PMID: 37188552 DOI: 10.1016/j.crad.2023.03.020] [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: 05/12/2022] [Revised: 12/14/2022] [Accepted: 03/31/2023] [Indexed: 05/17/2023]
Abstract
AIM To determine the level of heterogeneity in delivery of computed tomography (CT) colonography services and develop a workforce calculator that accommodates the variation identified. MATERIALS AND METHODS A national survey, based on the "WHO workforce indicators of staffing need", established activity standards for essential tasks in delivery of the service. From these data a workforce calculator was designed to guide the required staffing and equipment resource by service size. RESULTS Activity standards were established as mode responses >70%. Service homogeneity was greater in areas where professional standards and guidance were available. The mean service size was 1,101. Did not attend (DNA) rates were lower where direct booking was available (p<0.0001). Service sizes were larger where radiographer reporting was embedded in reporting paradigms (p<0.024). CONCLUSION The survey identified benefits of radiographer-led direct booking and reporting. The workforce calculator derived from the survey provides a framework to guide the resourcing of expansion while maintaining standards.
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Affiliation(s)
- I Britton
- Imaging Department, University Hospital of North Midlands, Stoke-on-Trent, UK.
| | - C Bradbury
- Imaging Department, University Hospital of North Midlands, Stoke-on-Trent, UK
| | - S Srinivas
- Imaging Department, University Hospital of North Midlands, Stoke-on-Trent, UK
| | - R Balasubramaniam
- Imaging Department, University Hospital of North Midlands, Stoke-on-Trent, UK
| | - M Dale
- Imaging Department, University Hospital of North Midlands, Stoke-on-Trent, UK
| | - A Morley-Davies
- Cardiology Department, University Hospital of North Midlands, Stoke-on-Trent, UK
| | - R Bednall
- Quality Improvement Academy, University Hospital of North Midlands, Stoke-on-Trent, UK
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Bhargava P, Srinivas S, Shenoy R, Shah D, Gulia A, Prurthi M, Nayak P, Janu A, Chakrabarty N, Purandare N, Ramadwar M, Rekhi B, Panjwani P, Puri A, Bajpai J. 71P Does age impact outcomes of osteosarcoma? A single-center retrospective evaluation of the demographic profile and outcome of osteosarcoma in patients more than 40 years of age. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.101108] [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: 04/05/2023] Open
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Spigel D, Galsky M, Heeke A, Villaruz L, Sands J, Subbiah V, Sonpavde G, Singh A, Srinivas S, Brock G, Cai G, Bhatt K, Chakrabarti D. PP01.50 EMERGE-201: Phase 2 Basket Study of Lurbinectedin Monotherapy in Advanced or Metastatic Solid Tumors. J Thorac Oncol 2023. [DOI: 10.1016/j.jtho.2022.09.076] [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: 01/29/2023]
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Aradya A, Chowdhary R, Srinivas S. Immediate flapless implant placement in a smoker patient: A challenge for optimum aesthetics and secondary stability: A case report. Niger J Clin Pract 2022; 25:2067-2072. [PMID: 36537467 DOI: 10.4103/njcp.njcp_106_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The objective of this case report was to restore the young patient with missing teeth and extruded tooth using an immediate implant and synthetic bone graft material for the esthetic and comfort purpose. A 21-year young man reported extrusion of a tooth as well as missing teeth. Clinical examination revealed missing teeth in relation to (irt) 11 and 21, extrusion of tooth in relation to (irt) 12, patient had generalized fluorosis, and localized marginal gingivitis with melanin pigmentation. The patient is a known smoker, and he was advised the cessation of smoking before the treatment. This paper describes a step-by-step approach to different treatment phases, starting with surgical guide fabrication, immediate implant surgical procedures, bone grafting procedure, and later prosthesis fabrication. Follow-up resulted in a satisfactory outcome.
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Affiliation(s)
- A Aradya
- Department of Prosthodontics, JSS Dental College and Hospital, A Constituent College of JSS Academy of Higher Education & Research, Mysuru, Karnataka, India
| | - R Chowdhary
- Department of Prosthodontics, RajaRajeswari Dental College and Hospital, Bangalore, Karnataka, India
| | - S Srinivas
- Department of Prosthodontics, JSS Dental College and Hospital, A Constituent College of JSS Academy of Higher Education & Research, Mysuru, Karnataka, India
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Bajpai J, Simha V, Anne S, Bhargava P, Srinivas S, Khanna N, Rekhi B, Noronha V, Patil V, Laskar S, Prabhash K, Gupta S, Banavali S. 431P Alveolar soft part sarcomas: A tertiary care Indian centre experience. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.462] [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: 12/05/2022] Open
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Venkatesan G, Reddy AS, Srinivas S, Jagadeshkumar K. Pulsating Hydromagnetic Flow of Chemically Reactive Oldroyd-B Nanofluid in a Channel with Brownian Motion, Thermophoresis, and Joule Heating. j nanofluids 2022. [DOI: 10.1166/jon.2022.1866] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In the present study, the magnetohydrodynamic pulsating flow of chemically reacting Oldroyd-B nanoliquid via channel with the impressions of Ohmic heating, radiative heat and viscous dissipation is studied. The ruling PDEs (partial differential equations) are changed into ODEs (Ordinary
differential equations) by utilizing the perturbation procedure and numerically deciphered by adopting the 4th order Runge-Kutta approach with the aid of the shooting process. The novelty of the current work is to inspect the pulsating flow of Oldroyd-B nanoliquid via channel in the occurrence
of an applied magnetic field by deploying the Buongiorno nanofluid model. The application of the proposed physical model is energy production, heating and cooling processes, thermoelectric devices, bio-medical applications like brain tumours, cancer treatment, drug targeting. Detailed analysis
on the impacts of several pertinent parameters for velocity, temperature, nanoparticles concentration, rates of heat and mass transfer is done. The outcomes predict that the velocity of nanoliquid is improved with augmenting frequency parameter while it is reduced with acceleration in Hartmann
number. The temperature rises with an improvement of thermophoresis, viscous dissipation, and Brownian motion while it falls for a given rise in Hartmann number and thermal radiation. Further, the nanoparticle concentration rises with an increasing Brownian motion while it falls over rising
chemical reaction, thermophoresis, and Lewis number.
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Affiliation(s)
- G. Venkatesan
- Department of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - A. Subramanyam Reddy
- Department of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - S. Srinivas
- Department of Mathematics, School of Advanced Sciences, VIT-AP University, Amaravati 522237, Andhra Pradesh, India
| | - K. Jagadeshkumar
- Department of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
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Abstract
Introduction Adolescents patients presenting with mood disorders, including disruptive mood dysregulation disorder (DMDD), often present with the comorbid disorders such as oppositional defiant disorder (ODD) and attention-deficit hyperactivity disorder (ADHD). Objectives 1) Evaluate the association between suicide in adolescents and various mood disorders. 2) To study the impact of comorbid conditions in DMDD on suicide ideation and attempt in adolescents. Methods We used 2016-2017 National Inpatient Sample dataset to select patients with mood disorders. Rao Scott adjusted Chi-Square test used to compare the groups with SPSS v26. Results In this study, 15195 patients were in the DMDD group (Mean age:12.1,F: 38%) and 219205 in the ‘other mood disorders’ group (Mean age:14.4,F:67%). The odds of SI/SA were two times more in patients with the ‘other type of mood disorder’ (OR:2.07, 95%CI: 1.77-2.14). Patients with the primary diagnosis of DMDD sub-classified into four groups (Group 1: DMDD only (n=5160), Group 2: DMDD+ADHD (n=7240), Group 3: DMDD +ODD (n=700), and Group 4: DMDD+ADHD+ODD (n=2095). SI/SA was prevalent in 30.8%, 26.0%, 22.9% and 26.3% in Group 1, 2, 3 and 4 respectively (p: 0.03). SI/SA was more prevalent in females compared to males (31.3% vs. 25.2%). An increase of 1 year in age was associated with a higher SI/SA (OR:1.05, 95%CI:1.01-1.08, 0.01). The SI/SA odds were 5% more in female patients (OR:1.27, p:0.01). Conclusions The study reveals that the risk of suicide ideation or suicide attempt is almost twice in the adolescent with mood disorders without DMDD compared to the DMDD group. Disclosure No significant relationships.
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Srinivas S, Yeluru A, Liau J, Ganesh A, Minocha J, Mcnamee C, Rose S, Fowler K, Berman Z. Abstract No. 194 Tumor response after ablative Y-90 transarterial radioembolization for hepatocellular carcinoma based on post-hoc voxel-based dosimetry. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Aravind S, Sangeetha D, Krishnaraj R, Ravi K, Srinivas S, Priya KA. Association of Abo Blood Groups and Rh Factor with Sagittal and Vertical Skeletal Malocclusion- An Observational Study. J Clin Diagn Res 2022. [DOI: 10.7860/jcdr/2022/53495.16563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Introduction: Various studies have proved the association between several disease including dental crowding, malocclusion and craniofacial deformities with blood group. Certain skeletal problems in sagittal plane are heritable and the skeletal muscle volume and strength, a heritable trait varies with different facial patterns. Aim: To evaluate the association between ABO blood groups and Rhesus (Rh) factor with skeletal malocclusions in sagittal and vertical plane. Materials and Methods: An observational study was conducted with a sample of 240 participants who reported to Department of Orthodontics in SRM dental college and hospital, Chennai, Tamil Nadu, India seeking orthodontic treatment over a period of two years from September 2018 to December 2020. Participants were assessed for skeletal malocclusion in sagittal and vertical plane and for their ABO and Rh blood grouping. Chi square test was used for determining the association between sagittal and vertical skeletal malocclusion with ABO and Rh blood grouping. The association of the gender and the malocclusion was determined as a secondary outcome of the study. Results: A total of 240 participants (mean age: 19.81±5.95 years; 95 males and 145 females) were observed and data was analysed. A significant association was found between Rh positive blood group and skeletal class II malocclusion with high angle (p-value 0.025) Skeletal class I malocclusion with high angle was found to be associated significantly with O+ group (p-value<0.001). The female gender was found to be associated significantly with sagittal skeletal class II malocclusion with high angle (p-value 0.049). Conclusion: There is an association between the ABO blood groups and skeletal sagittal malocclusion and vertical skeletal pattern. Skeletal class II malocclusion with high angle pattern was associated significantly with Rh+ blood group and Class I Skeletal malocclusion with high angle pattern was significantly associated with O+ blood group.
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Hegde NG, Sivasankaran M, Munirathnam D, Vimal Kumar G, Srinivas S. Upfront low dose cytrabine with prednisolone for Langerhan Cell Histiocytosis with Liver dysfunction: A ray of hope. Pediatric Hematology Oncology Journal 2022. [DOI: 10.1016/j.phoj.2022.10.114] [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: 11/27/2022] Open
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Lohoff T, Ghazanfar S, Missarova A, Koulena N, Pierson N, Griffiths JA, Bardot ES, Eng CHL, Tyser RCV, Argelaguet R, Guibentif C, Srinivas S, Briscoe J, Simons BD, Hadjantonakis AK, Göttgens B, Reik W, Nichols J, Cai L, Marioni JC. Integration of spatial and single-cell transcriptomic data elucidates mouse organogenesis. Nat Biotechnol 2022; 40:74-85. [PMID: 34489600 PMCID: PMC8763645 DOI: 10.1038/s41587-021-01006-2] [Citation(s) in RCA: 108] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 07/07/2021] [Indexed: 02/07/2023]
Abstract
Molecular profiling of single cells has advanced our knowledge of the molecular basis of development. However, current approaches mostly rely on dissociating cells from tissues, thereby losing the crucial spatial context of regulatory processes. Here, we apply an image-based single-cell transcriptomics method, sequential fluorescence in situ hybridization (seqFISH), to detect mRNAs for 387 target genes in tissue sections of mouse embryos at the 8-12 somite stage. By integrating spatial context and multiplexed transcriptional measurements with two single-cell transcriptome atlases, we characterize cell types across the embryo and demonstrate that spatially resolved expression of genes not profiled by seqFISH can be imputed. We use this high-resolution spatial map to characterize fundamental steps in the patterning of the midbrain-hindbrain boundary (MHB) and the developing gut tube. We uncover axes of cell differentiation that are not apparent from single-cell RNA-sequencing (scRNA-seq) data, such as early dorsal-ventral separation of esophageal and tracheal progenitor populations in the gut tube. Our method provides an approach for studying cell fate decisions in complex tissues and development.
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Affiliation(s)
- T Lohoff
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- Epigenetics Programme, Babraham Institute, Cambridge, UK
| | - S Ghazanfar
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - A Missarova
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Cambridge, UK
| | - N Koulena
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - N Pierson
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - J A Griffiths
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
- Genomics Plc, Cambridge, UK
| | - E S Bardot
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - C-H L Eng
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - R C V Tyser
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | - R Argelaguet
- Epigenetics Programme, Babraham Institute, Cambridge, UK
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Cambridge, UK
| | - C Guibentif
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- Department of Haematology, University of Cambridge, Cambridge, UK
- Sahlgrenska Center for Cancer Research, Department of Microbiology and Immunology, University of Gothenburg, Gothenburg, Sweden
| | - S Srinivas
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | - J Briscoe
- The Francis Crick Institute, London, UK
| | - B D Simons
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- The Wellcome/Cancer Research UK Gurdon Institute, University of Cambridge, Cambridge, UK
- Department of Applied Mathematics and Theoretical Physics, Centre for Mathematical Sciences, University of Cambridge, Cambridge, UK
| | - A-K Hadjantonakis
- Developmental Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - B Göttgens
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- Department of Haematology, University of Cambridge, Cambridge, UK
| | - W Reik
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK.
- Epigenetics Programme, Babraham Institute, Cambridge, UK.
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK.
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK.
| | - J Nichols
- Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK.
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK.
| | - L Cai
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA.
| | - J C Marioni
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK.
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Cambridge, UK.
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK.
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Tyagi R, Kapoor A, Kaur G, Srinivas S. Pregnant lady with eosinophilia: common cause, uncommon association. Med J Armed Forces India 2022; 78:103-105. [PMID: 35035052 PMCID: PMC8737090 DOI: 10.1016/j.mjafi.2019.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 09/10/2019] [Indexed: 01/03/2023] Open
Abstract
Peripheral eosinophilia can have a myriad of causes and presents a diagnostic challenge in everyday practice. Tropical pulmonary eosinophilia (TPE), seen commonly in tropics, is an immunological reaction to filarial parasites. This disease can present with clinical features that closely mimic asthma, eosinophilic pneumonia, and Loffler's syndrome. Differentiating between these diseases is essential owing to marked differences in treatment. This can be further challenging in pregnancy as any wrong treatment is likely to affect both the mother and the child. We report a case of a pregnant lady who presented with eosinophilia and of how she was worked up to the correct diagnosis. There are only few reported cases of TPE in pregnancy, and there are no reported cases from India. The case also underlines the approach required in these patients to reach the correct diagnosis.
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Affiliation(s)
- Rahul Tyagi
- Classified Specialist (Pulmonary Medicine), INHS Asvini, Colaba, Mumbai, India
| | - Anupam Kapoor
- Consultant and Head (Obstetrics and Gynaecology), INHS Asvini, Colaba, Mumbai, India
| | - Gurpreet Kaur
- Graded Specialist (Pathology), INHS Asvini, Mumbai, India
| | - S. Srinivas
- Senior Advisor (Obstetrics and Gynaecology), INHS Asvini, Mumbai, India
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Chandrasekharam V, Babu R, Srinivas S, Rao NB, Kumar AN. Live Case Demonstrations are Essential for the Success of Pediatric Urology Meetings in India. J Indian Assoc Pediatr Surg 2021; 26:370-373. [PMID: 34912132 PMCID: PMC8637986 DOI: 10.4103/jiaps.jiaps_200_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/26/2020] [Accepted: 04/21/2021] [Indexed: 11/27/2022] Open
Abstract
Purpose: The purpose of the study was to survey the opinion of delegates attending national pediatric urology meeting regarding live case demonstrations (LCDs) to see whether these can be replaced with taped case demonstrations (TCDs) in future. Methods: A questionnaire-based survey was conducted at the end of the 3-day annual conference and live operative workshop in pediatric urology. Apart from general data such as age of the respondent and type of practice setting, four key questions on LCDs with yes/no responses included: would you have attended this meeting if there were no LCDs? Are unedited videos (TCDs) as effective as LCDs for teaching? Do you think LCDs should be continued? Would you allow your child to be operated in LCD by an expert? For question 3, the outcomes were compared between junior surgeons (<45-year-old) and senior surgeons (>45-year-old). Results: On analysis, 88/140 (62%) respondents (95% confidence interval [CI]: 54%–70%) said that they would not have attended the meeting if there were no LCDs; 70/139 (50%) respondents (95% CI: 42%–58%) felt that TCDs may be an effective alternative to LCDs; 129/144 (90%) respondents (95% CI: 83%–94%) felt that LCDs should be continued. For question 4, 101/129 (79%) said they would allow their child to be operated in LCD by an expert, while 28 (21%) did not agree for their child to be operated in LCD. There was no significant difference between junior and senior surgeons regarding support for LCDs (P = 0.15). Conclusions: In the Indian scenario, LCDs were favored as an essential part of pediatric urology meeting, attract more participation, and are likely to be important for the success of the meeting.
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Affiliation(s)
- Vvs Chandrasekharam
- Pediatric Surgery, Pediatric Urology & MAS, Ankura Hospitals for Women and Children, Hyderabad, Telangana, India
| | - Ramesh Babu
- Pediatric Urology, SRIHER, Chennai, Tamil Nadu, India
| | - S Srinivas
- Pediatric Surgery, Gandhi Medical College, Hyderabad, Telangana, India
| | | | - A Narendra Kumar
- Pediatric Surgery, Niloufer Hospital, Hyderabad, Telangana, India
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Agarwal N, McGregor B, Maughan B, Dorff T, Kelly W, Fang B, McKay R, Singh P, Pagliaro L, Dreicer R, Srinivas S, Loriot Y, Vaishampayan U, Goel S, Curran D, Panneerselvam A, Liu LF, Choueiri T, Pal S. LBA24 Cabozantinib (C) in combination with atezolizumab (A) in patients (pts) with metastatic castration-resistant prostate cancer (mCRPC): Results of expanded cohort 6 of the COSMIC-021 study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2100] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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15
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Menon N, Patil V, Noronha V, Joshi A, Mathrudev V, Bhattacharjee A, Chandrasekharan A, Srinivas S, Vallathol D, Chaturvedi P, Chaukar D, Pai P, Nair S, Thiagrajan S, Ghosh Laskar S, Nawale K, Dhumal S, Tambe R, Banavali S, Prabhash K. 865MO RMAC study: A randomized study evaluating the efficacy of metronomic adjuvant chemotherapy in patients with recurrent head and neck cancers post salvage surgery, not eligible for re-irradiation. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1275] [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: 12/01/2022] Open
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16
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Shankar A, Varadan B, Srinivas S, Cherukuru R, Kalyanasundaram S. Pseudosacculations in CT enterography: a diagnostic clue to Crohn's disease. QJM 2021; 114:339-340. [PMID: 33401310 DOI: 10.1093/qjmed/hcaa345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Shankar
- Department of Radiology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India
| | - B Varadan
- Department of Radiology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India
| | - S Srinivas
- Department of Radiology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India
| | - R Cherukuru
- Department of Radiology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India
| | - S Kalyanasundaram
- Department of Radiology, Dr. Rela Institute and Medical Centre, Chromepet, Chennai, India
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Chaudhari AS, Mittra E, Davidzon GA, Gulaka P, Gandhi H, Brown A, Zhang T, Srinivas S, Gong E, Zaharchuk G, Jadvar H. Low-count whole-body PET with deep learning in a multicenter and externally validated study. NPJ Digit Med 2021; 4:127. [PMID: 34426629 PMCID: PMC8382711 DOI: 10.1038/s41746-021-00497-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 08/03/2021] [Indexed: 02/08/2023] Open
Abstract
More widespread use of positron emission tomography (PET) imaging is limited by its high cost and radiation dose. Reductions in PET scan time or radiotracer dosage typically degrade diagnostic image quality (DIQ). Deep-learning-based reconstruction may improve DIQ, but such methods have not been clinically evaluated in a realistic multicenter, multivendor environment. In this study, we evaluated the performance and generalizability of a deep-learning-based image-quality enhancement algorithm applied to fourfold reduced-count whole-body PET in a realistic clinical oncologic imaging environment with multiple blinded readers, institutions, and scanner types. We demonstrate that the low-count-enhanced scans were noninferior to the standard scans in DIQ (p < 0.05) and overall diagnostic confidence (p < 0.001) independent of the underlying PET scanner used. Lesion detection for the low-count-enhanced scans had a high patient-level sensitivity of 0.94 (0.83-0.99) and specificity of 0.98 (0.95-0.99). Interscan kappa agreement of 0.85 was comparable to intrareader (0.88) and pairwise inter-reader agreements (maximum of 0.72). SUV quantification was comparable in the reference regions and lesions (lowest p-value=0.59) and had high correlation (lowest CCC = 0.94). Thus, we demonstrated that deep learning can be used to restore diagnostic image quality and maintain SUV accuracy for fourfold reduced-count PET scans, with interscan variations in lesion depiction, lower than intra- and interreader variations. This method generalized to an external validation set of clinical patients from multiple institutions and scanner types. Overall, this method may enable either dose or exam-duration reduction, increasing safety and lowering the cost of PET imaging.
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Affiliation(s)
- Akshay S Chaudhari
- Department of Radiology, Stanford University, Palo Alto, CA, USA.
- Department of Biomedical Data Science, Stanford University, Stanford, CA, USA.
- Subtle Medical, Menlo Park, CA, USA.
| | - Erik Mittra
- Division of Diagnostic Radiology, Oregon Health & Science University, Portland, OR, USA
| | - Guido A Davidzon
- Department of Radiology, Stanford University, Palo Alto, CA, USA
| | | | | | - Adam Brown
- Division of Diagnostic Radiology, Oregon Health & Science University, Portland, OR, USA
| | | | - Shyam Srinivas
- Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - Greg Zaharchuk
- Department of Radiology, Stanford University, Palo Alto, CA, USA
- Subtle Medical, Menlo Park, CA, USA
| | - Hossein Jadvar
- Department of Radiology, University of Southern California, Los Angeles, CA, USA
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Bhargava P, Ostwal V, Ramaswamy A, Srinivas S, Mandavkar S, Naughane D, Gota V, Patkar S, Goel M, Banavali S, Shetty N. P-24 A prospective phase 1b dose de-escalation open-label clinical study to evaluate the safety and efficacy of sorafenib with metformin and atorvastatin in advanced hepatocellular carcinoma (SMASH). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Grivas P, Loriot Y, Morales-Barrera R, Teo MY, Zakharia Y, Feyerabend S, Vogelzang NJ, Grande E, Adra N, Alva A, Necchi A, Rodriguez-Vida A, Gupta S, Josephs DH, Srinivas S, Wride K, Thomas D, Simmons A, Loehr A, Dusek RL, Nepert D, Chowdhury S. Efficacy and safety of rucaparib in previously treated, locally advanced or metastatic urothelial carcinoma from a phase 2, open-label trial (ATLAS). BMC Cancer 2021; 21:593. [PMID: 34030643 PMCID: PMC8147008 DOI: 10.1186/s12885-021-08085-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 03/22/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND ATLAS evaluated the efficacy and safety of the PARP inhibitor rucaparib in patients with previously treated locally advanced/unresectable or metastatic urothelial carcinoma (UC). METHODS Patients with UC were enrolled independent of tumor homologous recombination deficiency (HRD) status and received rucaparib 600 mg BID. The primary endpoint was investigator-assessed objective response rate (RECIST v1.1) in the intent-to-treat and HRD-positive (loss of genome-wide heterozygosity ≥10%) populations. Key secondary endpoints were progression-free survival (PFS) and safety. Disease control rate (DCR) was defined post-hoc as the proportion of patients with a confirmed complete or partial response (PR), or stable disease lasting ≥16 weeks. RESULTS Of 97 enrolled patients, 20 (20.6%) were HRD-positive, 30 (30.9%) HRD-negative, and 47 (48.5%) HRD-indeterminate. Among 95 evaluable patients, there were no confirmed responses. However, reductions in the sum of target lesions were observed, including 6 (6.3%) patients with unconfirmed PR. DCR was 11.6%; median PFS was 1.8 months (95% CI, 1.6-1.9). No relationship was observed between HRD status and efficacy endpoints. Median treatment duration was 1.8 months (range, 0.1-10.1). Most frequent any-grade treatment-emergent adverse events were asthenia/fatigue (57.7%), nausea (42.3%), and anemia (36.1%). Of 64 patients with data from tumor tissue samples, 10 (15.6%) had a deleterious alteration in a DNA damage repair pathway gene, including four with a deleterious BRCA1 or BRCA2 alteration. CONCLUSIONS Rucaparib did not show significant activity in unselected patients with advanced UC regardless of HRD status. The safety profile was consistent with that observed in patients with ovarian or prostate cancer. TRIAL REGISTRATION This trial was registered in ClinicalTrials.gov (NCT03397394). Date of registration: 12 January 2018. This trial was registered in EudraCT (2017-004166-10).
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Affiliation(s)
- P Grivas
- Department of Medicine, Division of Medical Oncology, University of Washington, Seattle, WA, 98109, USA.
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, 98109, USA.
- Seattle Cancer Care Alliance, 1144 Eastlake Avenue E, LG- 465, Seattle, WA, 98109, USA.
| | - Y Loriot
- Department of Medicine, Gustave Roussy Cancer Campus, INSERM U981, Université Paris-Saclay, 39 Rue Camille Desmoulins, 94800, Villejuif, France
| | | | - M Y Teo
- Department of Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Y Zakharia
- Division of Hematology, Oncology, and Blood and Marrow Transplant, University of Iowa and Holden Comprehensive Cancer Center, 200 Hawkins Drive, Iowa City, IA, 52242, USA
| | - S Feyerabend
- Studienpraxis Urologie, Steinengrabenstraße 17, 72622, Nürtingen, Germany
| | - N J Vogelzang
- Division of Hematology/Oncology, Comprehensive Cancer Centers of Nevada, 3730 S Eastern Avenue, Las Vegas, NV, 89169, USA
| | - E Grande
- Department of Medical Oncology, MD Anderson Cancer Center, Calle de Arturo Soria, 270 28033, Madrid, Spain
| | - N Adra
- Department of Medicine, Indiana University Simon Cancer Center, 535 Barnhill Drive, Indianapolis, IN, 46202, USA
| | - A Alva
- Department of Internal Medicine, University of Michigan Comprehensive Cancer Center, 1500 E Medical Center Drive, Ann Arbor, MI, 48109, USA
| | - A Necchi
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Giacomo Venezian, 1, 20133, Milan, Italy
| | - A Rodriguez-Vida
- Medical Oncology Department, Hospital del Mar, Passeig Maritim 25-29, 08003, Barcelona, Spain
| | - S Gupta
- Division of Medical Oncology, Huntsman Cancer Institute, University of Utah, 1950 Circle of Hope, Salt Lake City, UT, 84112, USA
| | - D H Josephs
- Department of Medical Oncology, Guy's and St. Thomas' NHS Foundation Trust, Great Maze Pond, London, SE1 9RT, UK
| | - S Srinivas
- Division of Medical Oncology, Stanford University School of Medicine, 875 Blake Wilbur Drive, Stanford, CA, 94305, USA
| | - K Wride
- Clovis Oncology, Inc., 5500 Flatiron Parkway, Boulder, CO, 80301, USA
| | - D Thomas
- Clovis Oncology, Inc., 5500 Flatiron Parkway, Boulder, CO, 80301, USA
| | - A Simmons
- Clovis Oncology, Inc., 5500 Flatiron Parkway, Boulder, CO, 80301, USA
| | - A Loehr
- Clovis Oncology, Inc., 5500 Flatiron Parkway, Boulder, CO, 80301, USA
| | - R L Dusek
- Clovis Oncology, Inc., 5500 Flatiron Parkway, Boulder, CO, 80301, USA
| | - D Nepert
- Clovis Oncology, Inc., 5500 Flatiron Parkway, Boulder, CO, 80301, USA
| | - S Chowdhury
- Department of Medical Oncology, Guy's and St. Thomas' NHS Foundation Trust & Sarah Cannon Research Institute, Great Maze Pond, London, SE1 9RT, UK
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Bajpai J, Pradeep V, Nandhana R, Mohanty S, Chougle Q, Engineer M, Rath S, Joshi S, Wadasadawala T, Popat P, Pathak R, Gulia S, Ghosh J, Bhargava P, Srinivas S, Shet T, Sarin R, Badwe R, Gupta S. 162P Unique challenges and outcomes of young breast cancers from a tertiary care cancer centre in India. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Srinivas S, Jaswal S, Newton I, Keller E. Abstract No. 127 Use of advance care planning prior to interventional radiology procedures: a multicenter retrospective study. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.133] [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: 11/25/2022] Open
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Sivaramalingam S, Ethiraj D, Srinivas S, Kalyanasundaram S, Subbiah K, Varadan B. Thread and streak sign in hepatocellular carcinoma. QJM 2021; 114:134-135. [PMID: 33245120 DOI: 10.1093/qjmed/hcaa317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Sivaramalingam
- Department of Radiology , Dr. Rela Institute and Medical Centre, 7 Works Road, Chromepet, Chennai, Tamil Nadu 600044, India
| | - D Ethiraj
- Department of Radio-Diagnosis , Dr. Rela Institute and Medical Centre, 7 Works Road, Chromepet, Chennai, Tamil Nadu 600044, India
| | - S Srinivas
- Department of Radiology, Dr. Rela Institute and Medical Centre, 7 Works Road, Chromepet, Chennai, Tamil Nadu 600044, India
| | | | | | - B Varadan
- Department of Radio-Diagnosis, Dr. Rela Institute and Medical Centre, 7 Works Road, Chromepet, Chennai, Tamil Nadu 600044, India
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Abstract
Trauma is a major cause of death in the United States, particularly in the younger population. Many traumatic deaths, as well as major morbidity, occur secondary to uncontrolled hemorrhage and eventual exsanguination. Interventional radiology plays a major role in treating these patients, and interventional techniques have evolved to the point where they are an integral part of treatment in these critically ill patients. This article reviews the role of interventional radiology in the treatment algorithms for traumatic injury sponsored by major societies and associations.
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Affiliation(s)
- A S Pillai
- University of Texas, Medical Branch Galveston, Galveston, Texas
| | - S Srinivas
- University of Texas, Medical Branch Galveston, Galveston, Texas
| | - G Kumar
- Southwestern Medical Center, University of Texas, Dallas, Texas
| | - A K Pillai
- Southwestern Medical Center, University of Texas, Dallas, Texas
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Bagheri I, Shan Y, Klaassen Z, Kamat AM, Konety B, Mehta HB, Baillargeon JG, Srinivas S, Tyler DS, Swanson TA, Kaul S, Hollenbeck BK, Williams SB. Comparing Costs of Radical Versus Partial Cystectomy for Patients Diagnosed with Localized Muscle-Invasive Bladder Cancer: Understanding the Value of Surgical Care. Urol Oncol 2020. [DOI: 10.1016/j.urolonc.2020.10.044] [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: 11/30/2022]
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Chen KT, Gong E, de Carvalho Macruz FB, Xu J, Boumis A, Khalighi M, Poston KL, Sha SJ, Greicius MD, Mormino E, Pauly JM, Srinivas S, Zaharchuk G. Ultra-Low-Dose 18F-Florbetaben Amyloid PET Imaging Using Deep Learning with Multi-Contrast MRI Inputs. Radiology 2020; 296:E195. [PMID: 32804601 DOI: 10.1148/radiol.2020202527] [Citation(s) in RCA: 3] [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: 11/11/2022]
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Pal S, Tsao CK, Suarez C, Kelly W, Pagliaro L, Vaishampayan U, Loriot Y, Srinivas S, McGregor B, Panneerselvam A, Curran D, Choueiri T, Agarwal N. 702O Cabozantinib (C) in combination with atezolizumab (A) as first-line therapy for advanced clear cell renal cell carcinoma (ccRCC): Results from the COSMIC-021 study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.774] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Kalra D, Singh G, Menon N, Simha V, Srinivas S, Vallathol D, Das S, Adak S, Dale O, Patil V. 393P Financial toxicity in patients undergoing systemic therapy in brain tumours: A cross-sectional study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.502] [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: 11/30/2022] Open
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Bamias A, Tzannis K, Harshman LC, Crabb SJ, Wong YN, Kumar Pal S, De Giorgi U, Ladoire S, Agarwal N, Yu EY, Niegisch G, Necchi A, Sternberg CN, Srinivas S, Alva A, Vaishampayan U, Cerbone L, Liontos M, Rosenberg J, Powles T, Bellmunt J, Galsky MD. Impact of contemporary patterns of chemotherapy utilization on survival in patients with advanced cancer of the urinary tract: a Retrospective International Study of Invasive/Advanced Cancer of the Urothelium (RISC). Ann Oncol 2019; 30:1841. [PMID: 31868903 PMCID: PMC8902985 DOI: 10.1093/annonc/mdz214] [Citation(s) in RCA: 3] [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: 11/13/2022] Open
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Srinivas S, Swaminathan N, Ravishankar G, Justin Paul G, Venkatesan S. Not So Innocent Heart: Echo Assessment of Obstructive COR Triatriatum with Cleft Mitral Valve. Indian Heart J 2019. [DOI: 10.1016/j.ihj.2019.11.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Srinivas S, Swaminathan N, Ravishankar G, Justin Paul G, Venkatesan S. Alcoholic Cardiomyopathy Mimicking as LMCA Disease - A Rare Case Report. Indian Heart J 2019. [DOI: 10.1016/j.ihj.2019.11.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Hoimes C, Rosenberg J, Srinivas S, Petrylak D, Milowsky M, Merchan J, Bilen M, Gupta S, Carret AS, Yuan N, Melhem-Bertrandt A, Flaig T. EV-103: Initial results of enfortumab vedotin plus pembrolizumab for locally advanced or metastatic urothelial carcinoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz249] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Nair KM, Anil Kumar KS, Lalitha M, Shivanand ,, Ramesh Kumar SC, Srinivas S, Koyal A, Parvathy S, Sujatha K, Thamban C, Mathew J, Chandran KP, Haris A, Krishnakumar V, Srinivasan V, Jessy ,, Jacob J, Nagaraj JS, D’Souza MV, Raghuramulu Y, Hegde R, Singh SK. Surface Soil and Subsoil Acidity in Natural and Managed Land-Use Systems in the Humid Tropics of Peninsular India. CURR SCI INDIA 2019. [DOI: 10.18520/cs/v116/i7/1201-1211] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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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Stukalin I, Wells JC, Graham J, Yuasa T, Beuselinck B, Kollmansberger C, Ernst DS, Agarwal N, Le T, Donskov F, Hansen AR, Bjarnason GA, Srinivas S, Wood LA, Alva AS, Kanesvaran R, Fu SYF, Davis ID, Choueiri TK, Heng DYC. Real-world outcomes of nivolumab and cabozantinib in metastatic renal cell carcinoma: results from the International Metastatic Renal Cell Carcinoma Database Consortium. ACTA ACUST UNITED AC 2019; 26:e175-e179. [PMID: 31043824 DOI: 10.3747/co.26.4595] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Objectives In the present study, we explored the real-world efficacy of the immuno-oncology checkpoint inhibitor nivolumab and the tyrosine kinase inhibitor cabozantinib in the second-line setting. Methods Using the International Metastatic Renal Cell Carcinoma Database Consortium (imdc) dataset, a retrospective analysis of patients with metastatic renal cell carcinoma (mrcc) treated with nivolumab or cabozantinib in the second line after prior therapy targeted to the vascular endothelial growth factor receptor (vegfr) was performed. Baseline characteristics and imdc risk factors were collected. Overall survival (os) and time to treatment failure (ttf) were calculated using Kaplan-Meier curves. Overall response rates (orrs) were determined for each therapy. Multivariable Cox regression analysis was performed to determine survival differences between cabozantinib and nivolumab treatment. Results The analysis included 225 patients treated with nivolumab and 53 treated with cabozantinib. No significant difference in median os was observed: 22.10 months [95% confidence interval (ci): 17.18 months to not reached] with nivolumab and 23.70 months (95% ci: 15.52 months to not reached) with cabozantinib (p = 0.61). The ttf was also similar at 6.90 months (95% ci: 4.60 months to 9.20 months) with nivolumab and 7.39 months (95% ci: 5.52 months to 12.85 months) with cabozantinib (p = 0.20). The adjusted hazard ratio (hr) for nivolumab compared with cabozantinib was 1.30 (95% ci: 0.73 to 2.3), p = 0.38. When adjusted by imdc criteria and age, the hr was 1.32 (95% ci: 0.74 to 2.38), p = 0.35. Conclusions Real-world imdc data indicate comparable os and ttf for nivolumab and cabozantinib. Both agents are reasonable therapeutic options for patients progressing after initial first-line vegfr-targeted therapy.
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Affiliation(s)
- I Stukalin
- Alberta: Tom Baker Cancer Center, University of Calgary, Calgary (Stukalin, Wells, Heng)
| | - J C Wells
- Alberta: Tom Baker Cancer Center, University of Calgary, Calgary (Stukalin, Wells, Heng).,Ontario: Queen's University, Kingston (Wells); London Health Sciences Centre, London (Ernst); Princess Margaret Cancer Centre, University Health Network, Toronto (Hansen); Sunnybrook Odette Cancer Centre, Toronto (Bjarnason)
| | - J Graham
- Alberta: Tom Baker Cancer Center, University of Calgary, Calgary (Stukalin, Wells, Heng)
| | - T Yuasa
- non-United States international: Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan (Yuasa); University Hospitals Leuven, Leuven, Belgium (Beuselinck); Aarhus University Hospital, Aarhus, Denmark (Donskov); National Cancer Centre Singapore, Singapore (Kanesvaran); Auckland City Hospital, Auckland, New Zealand (Fu); Monash University Eastern Health Clinical School, Melbourne, Australia (Davis)
| | - B Beuselinck
- non-United States international: Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan (Yuasa); University Hospitals Leuven, Leuven, Belgium (Beuselinck); Aarhus University Hospital, Aarhus, Denmark (Donskov); National Cancer Centre Singapore, Singapore (Kanesvaran); Auckland City Hospital, Auckland, New Zealand (Fu); Monash University Eastern Health Clinical School, Melbourne, Australia (Davis)
| | | | - D S Ernst
- Ontario: Queen's University, Kingston (Wells); London Health Sciences Centre, London (Ernst); Princess Margaret Cancer Centre, University Health Network, Toronto (Hansen); Sunnybrook Odette Cancer Centre, Toronto (Bjarnason)
| | - N Agarwal
- United States: University of Utah Huntsman Cancer Institute, Salt Lake City, UT (Agarwal); University of Texas Southwestern Medical Center, Dallas, TX (Le); Stanford Medical Center, Stanford, CA (Srinivas); University of Michigan, Ann Arbor, MI (Alva); Dana-Farber Cancer Institute, Boston, MA (Choueiri)
| | - T Le
- United States: University of Utah Huntsman Cancer Institute, Salt Lake City, UT (Agarwal); University of Texas Southwestern Medical Center, Dallas, TX (Le); Stanford Medical Center, Stanford, CA (Srinivas); University of Michigan, Ann Arbor, MI (Alva); Dana-Farber Cancer Institute, Boston, MA (Choueiri)
| | - F Donskov
- non-United States international: Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan (Yuasa); University Hospitals Leuven, Leuven, Belgium (Beuselinck); Aarhus University Hospital, Aarhus, Denmark (Donskov); National Cancer Centre Singapore, Singapore (Kanesvaran); Auckland City Hospital, Auckland, New Zealand (Fu); Monash University Eastern Health Clinical School, Melbourne, Australia (Davis)
| | - A R Hansen
- Ontario: Queen's University, Kingston (Wells); London Health Sciences Centre, London (Ernst); Princess Margaret Cancer Centre, University Health Network, Toronto (Hansen); Sunnybrook Odette Cancer Centre, Toronto (Bjarnason)
| | - G A Bjarnason
- Ontario: Queen's University, Kingston (Wells); London Health Sciences Centre, London (Ernst); Princess Margaret Cancer Centre, University Health Network, Toronto (Hansen); Sunnybrook Odette Cancer Centre, Toronto (Bjarnason)
| | - S Srinivas
- United States: University of Utah Huntsman Cancer Institute, Salt Lake City, UT (Agarwal); University of Texas Southwestern Medical Center, Dallas, TX (Le); Stanford Medical Center, Stanford, CA (Srinivas); University of Michigan, Ann Arbor, MI (Alva); Dana-Farber Cancer Institute, Boston, MA (Choueiri)
| | - L A Wood
- Nova Scotia: Queen Elizabeth II Health Sciences Centre, Halifax (Wood)
| | - A S Alva
- United States: University of Utah Huntsman Cancer Institute, Salt Lake City, UT (Agarwal); University of Texas Southwestern Medical Center, Dallas, TX (Le); Stanford Medical Center, Stanford, CA (Srinivas); University of Michigan, Ann Arbor, MI (Alva); Dana-Farber Cancer Institute, Boston, MA (Choueiri)
| | - R Kanesvaran
- non-United States international: Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan (Yuasa); University Hospitals Leuven, Leuven, Belgium (Beuselinck); Aarhus University Hospital, Aarhus, Denmark (Donskov); National Cancer Centre Singapore, Singapore (Kanesvaran); Auckland City Hospital, Auckland, New Zealand (Fu); Monash University Eastern Health Clinical School, Melbourne, Australia (Davis)
| | - S Y F Fu
- non-United States international: Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan (Yuasa); University Hospitals Leuven, Leuven, Belgium (Beuselinck); Aarhus University Hospital, Aarhus, Denmark (Donskov); National Cancer Centre Singapore, Singapore (Kanesvaran); Auckland City Hospital, Auckland, New Zealand (Fu); Monash University Eastern Health Clinical School, Melbourne, Australia (Davis)
| | - I D Davis
- non-United States international: Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan (Yuasa); University Hospitals Leuven, Leuven, Belgium (Beuselinck); Aarhus University Hospital, Aarhus, Denmark (Donskov); National Cancer Centre Singapore, Singapore (Kanesvaran); Auckland City Hospital, Auckland, New Zealand (Fu); Monash University Eastern Health Clinical School, Melbourne, Australia (Davis)
| | - T K Choueiri
- United States: University of Utah Huntsman Cancer Institute, Salt Lake City, UT (Agarwal); University of Texas Southwestern Medical Center, Dallas, TX (Le); Stanford Medical Center, Stanford, CA (Srinivas); University of Michigan, Ann Arbor, MI (Alva); Dana-Farber Cancer Institute, Boston, MA (Choueiri)
| | - D Y C Heng
- Alberta: Tom Baker Cancer Center, University of Calgary, Calgary (Stukalin, Wells, Heng)
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Bamias A, Tzannis K, Harshman LC, Crabb SJ, Wong YN, Kumar Pal S, De Giorgi U, Ladoire S, Agarwal N, Yu EY, Niegisch G, Necchi A, Sternberg CN, Srinivas S, Alva A, Vaishampayan U, Cerbone L, Liontos M, Rosenberg J, Powles T, Bellmunt J, Galsky MD. Impact of contemporary patterns of chemotherapy utilization on survival in patients with advanced cancer of the urinary tract: a Retrospective International Study of Invasive/Advanced Cancer of the Urothelium (RISC). Ann Oncol 2019; 29:361-369. [PMID: 29077785 DOI: 10.1093/annonc/mdx692] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background Cisplatin-based combination chemotherapy is the standard treatment of advanced urinary tract cancer (aUTC), but 50% of patients are ineligible for cisplatin according to recently published criteria. We used a multinational database to study patterns of chemotherapy utilization in patients with aUTC and determine their impact on survival. Patients and methods This was a retrospective study of patients with: UTC (bladder, renal pelvis, ureter or urethra); advanced disease (stages T4b and/or N+ and/or M+); urothelial, squamous or adenocarcinoma histology. Primary objective was overall survival (OS). Eligibility-for-cisplatin was defined by Eastern Cooperative Oncology Group performance status ≤ 1, creatinine clearance ≥ 60 ml/min, no hearing loss, no neuropathy and no heart failure. Cox regression multivariate analyses were used to establish independent associations of cisplatin versus noncisplatin-based chemotherapy on OS. Results 1794 patients treated between 2000 and 2013 at 29 centers were analyzed. Median follow-up was 29.1 months. About 1333 patients (74%) received first-line chemotherapy: the use of first-line chemotherapy was associated with longer OS: [hazard ratio (HR): 1.91, 95% confidence interval (CI): 1.67-2.20]. Type of first-line chemotherapy received was: cisplatin-based 669 (50%), carboplatin-based 399 (30%) and other 265 (20%). Cisplatin use was an independent favorable prognostic factor (HR: 1.54, 95% CI: 1.35-1.77). This benefit was independent of baseline characteristics or comorbidities but was associated with eligibility-for-cisplatin: eligible patients treated with cisplatin lived longer than those who were not (HR: 1.74, 95% CI: 1.36-2.21), while such benefit was not observed among ineligible patients. About 26% of patients who did not receive cisplatin were eligible for this agent. Median OS of ineligible patients was poor irrespective of the chemotherapy used. Conclusions The importance of applying published criteria of eligibility-for-cisplatin was confirmed in a multinational, real-world setting in aUTC. The reasons for deviations from these criteria set targets to improve adherence. Effective therapies for cisplatin-ineligible patients are needed.
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Affiliation(s)
- A Bamias
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece.
| | - K Tzannis
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | | | - S J Crabb
- University of Southampton, Southampton, UK
| | - Y-N Wong
- Fox Chase Cancer Center, Philadelphia
| | - S Kumar Pal
- City of Hope Comprehensive Cancer Center, Duarte, USA
| | - U De Giorgi
- IRCCS Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori, Meldola, Italy
| | - S Ladoire
- Center Georges-François Leclerc, Dijon, France
| | | | - E Y Yu
- University of Washington, Seattle, USA
| | - G Niegisch
- Department of Urology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - A Necchi
- Fondazione IRCCS Istituto Nazionale dei Tumori, Milano
| | | | - S Srinivas
- Stanford University School of Medicine, Stanford
| | - A Alva
- University of Michigan, Ann Arbor
| | | | - L Cerbone
- San Camillo Forlanini Hospital, Rome, Italy
| | - M Liontos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - J Rosenberg
- Memorial Sloan-Kettering Cancer Center, New York, USA
| | - T Powles
- Barts Health and the Royal Free NHS Trust, Queen Mary University of London, London, UK
| | - J Bellmunt
- Dana-Farber Cancer Institute, Boston, USA
| | - M D Galsky
- Mount Sinai School of Medicine, Tisch Cancer Institute, New York, USA
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Chen KT, Gong E, de Carvalho Macruz FB, Xu J, Boumis A, Khalighi M, Poston KL, Sha SJ, Greicius MD, Mormino E, Pauly JM, Srinivas S, Zaharchuk G. Ultra-Low-Dose 18F-Florbetaben Amyloid PET Imaging Using Deep Learning with Multi-Contrast MRI Inputs. Radiology 2019; 290:649-656. [PMID: 30526350 PMCID: PMC6394782 DOI: 10.1148/radiol.2018180940] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 10/05/2018] [Accepted: 10/23/2018] [Indexed: 01/17/2023]
Abstract
Purpose To reduce radiotracer requirements for amyloid PET/MRI without sacrificing diagnostic quality by using deep learning methods. Materials and Methods Forty data sets from 39 patients (mean age ± standard deviation [SD], 67 years ± 8), including 16 male patients and 23 female patients (mean age, 66 years ± 6 and 68 years ± 9, respectively), who underwent simultaneous amyloid (fluorine 18 [18F]-florbetaben) PET/MRI examinations were acquired from March 2016 through October 2017 and retrospectively analyzed. One hundredth of the raw list-mode PET data were randomly chosen to simulate a low-dose (1%) acquisition. Convolutional neural networks were implemented with low-dose PET and multiple MR images (PET-plus-MR model) or with low-dose PET alone (PET-only) as inputs to predict full-dose PET images. Quality of the synthesized images was evaluated while Bland-Altman plots assessed the agreement of regional standard uptake value ratios (SUVRs) between image types. Two readers scored image quality on a five-point scale (5 = excellent) and determined amyloid status (positive or negative). Statistical analyses were carried out to assess the difference of image quality metrics and reader agreement and to determine confidence intervals (CIs) for reading results. Results The synthesized images (especially from the PET-plus-MR model) showed marked improvement on all quality metrics compared with the low-dose image. All PET-plus-MR images scored 3 or higher, with proportions of images rated greater than 3 similar to those for the full-dose images (-10% difference [eight of 80 readings], 95% CI: -15%, -5%). Accuracy for amyloid status was high (71 of 80 readings [89%]) and similar to intrareader reproducibility of full-dose images (73 of 80 [91%]). The PET-plus-MR model also had the smallest mean and variance for SUVR difference to full-dose images. Conclusion Simultaneously acquired MRI and ultra-low-dose PET data can be used to synthesize full-dose-like amyloid PET images. © RSNA, 2018 Online supplemental material is available for this article. See also the editorial by Catana in this issue.
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Affiliation(s)
- Kevin T. Chen
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Enhao Gong
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Fabiola Bezerra de Carvalho Macruz
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Junshen Xu
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Athanasia Boumis
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Mehdi Khalighi
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Kathleen L. Poston
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Sharon J. Sha
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Michael D. Greicius
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Elizabeth Mormino
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - John M. Pauly
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Shyam Srinivas
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
| | - Greg Zaharchuk
- From the Departments of Radiology (K.T.C., F.B.d.C.M., S.S., G.Z.),
Electrical Engineering (E.G., J.M.P.), and Neurology and Neurological Sciences
(A.B., K.L.P., S.J.S., M.D.G., E.M.), Stanford University, 1201 Welch Rd,
Stanford, CA 94305; Department of Engineering Physics, Tsinghua University,
Beijing, PR China (J.X.); GE Healthcare, Menlo Park, Calif (M.K.); and Subtle
Medical, Menlo Park, CA (E.G.)
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Mehta R, Singla A, Biraris P, Srinivas S, Srinivasan L. Flexible bronchoscopy-guided vocal cord biopsy under conscious sedation : An option to surgical biopsy in special situations. Lung India 2019. [DOI: 10.4103/0970-2113.257718] [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: 11/04/2022] Open
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Balasubramaniam M, Farheen S, Srinivas S, Tampi R. A look at the orexin receptor antagonism approach for the treatment of insomnia. DRUG FUTURE 2019. [DOI: 10.1358/dof.2019.44.7.2962941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Charles A, Ramani P, Sherlin HJ, Dilip S, Srinivas S, Jayaraj G. Evaluation of dermatoglyphic patterns using digital scanner technique in skeletal malocclusion: A descriptive study. Indian J Dent Res 2018; 29:711-715. [PMID: 30588996 DOI: 10.4103/ijdr.ijdr_137_18] [Citation(s) in RCA: 3] [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: 11/04/2022] Open
Abstract
Background Skin is the largest human organ, which performs a dynamic role in life. The ectodermal layers of the skin found on the palm with intricate lines are stable throughout life and have grabbed scientific attention. Any disturbances during their formation might possibly have the likelihood of a person developing malocclusion. Aims and Objectives The aims of this study were to evaluate and compare the dermatoglyphic pattern with various skeletal malocclusions. Materials and Methods The study was carried out on 40 outpatients reported with an age group of 18-20 years divided into four groups as follows: Group: I - 10 (Class I occlusion), Group: II - 10 (skeletal Class I malocclusion), Group: III - 10 (skeletal Class II malocclusion), and Group: IV - 10 (skeletal Class III malocclusion). The fingerprints were recorded using scanner exclusively designed for diagnostic purpose of the study. The collected data were analyzed using SPSS statistics software Version 23.0 to find which groups had significant differences. Results and Conclusion Increased frequency of arch pattern was present in participants with Class I malocclusion, and loop patterns were observed in those with Class I occlusion and Class III malocclusion and whorl patterns in Class II malocclusion with P < 0.05. Dermatoglyphic pattern remains constant throughout life and it can be used as a noninvasive aid in determining the development of malocclusion at a very early age.
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Affiliation(s)
- Anila Charles
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India
| | - Prathiba Ramani
- Department of Oral Pathology, Saveetha Dental College, Chennai, Tamil Nadu, India
| | - Herald J Sherlin
- Department of Orthodontics, Saveetha Dental College, Chennai, Tamil Nadu, India
| | - S Dilip
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India
| | - S Srinivas
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India
| | - Gifrina Jayaraj
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India
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Gupta K, Parthiban S, Kumar S, Srinivas S, Vallathol D, Chanana R, Grewal G, Rathnasamy N, Goel A, Bajpai J. Outcomes of gemcitabine-docetaxel as second-line chemotherapy in patients of advanced soft tissue sarcoma: A retrospective analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy443.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Gurajala RK, Fayazzadeh E, Nasr E, Shrikanthan S, Srinivas S, Karuppasamy K. Independent usefulness of flow phase 99mTc-red blood cell scintigraphy in predicting the results of angiography in acute gastrointestinal bleeding. Br J Radiol 2018; 92:20180336. [PMID: 30307319 DOI: 10.1259/bjr.20180336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE: In acute gastrointestinal bleeding, despite positive dynamic phase 99mTc-red blood cell scintigraphy, invasive catheter angiography (CA) is frequently negative. In this study, we investigated the value of flow phase scintigraphy in predicting extravasation on CA. METHODS: Institutional review board approval with a waiver of informed consent was obtained for this retrospective study. A total of 173 scintigraphy procedures performed in 145 patients with GIB between January 2013 and August 2014 were analysed. Scintigraphy had two phases: flow (1 image/s for 1 min) followed by dynamic (1 image/30 s for 1 h). Patients who underwent CA within 24 hours of positive scintigraphy were assessed. Each scintigraphy phase was randomly and independently reviewed by two nuclear medicine physicians blinded to the outcomes of the other phase and of CA. RESULTS: A total of 42 patients (29%) had positive scintigraphy. Of these patients, 29 underwent CA, and extravasation was seen in 6 (21%). In all, dynamic phase scintigraphy was positive. 13 of the 29 patients also had positive flow phase scintigraphy. The sensitivity, specificity, positive-predictive value, and negative-predictive value of flow phase scintigraphy for extravasation on CA were 100, 70, 46, and 100%, respectively. Specificity and positive predictive value were higher when CA was performed within 4 hours of positive flow phase scintigraphy. CONCLUSIONS: Negative flow phase scintigraphy can identify patients who will not benefit from CA despite positive dynamic phase scintigraphy. The likelihood of extravasation on CA is higher when performed soon after positive flow phase scintigraphy. ADVANCES IN KNOWLEDGE: Negative flow phase scintigraphy identifies patients who will not benefit from invasive catheter angiography despite positive results on subsequent dynamic phase scintigraphy. Increasing the delay between positive red blood cell scintigraphy and catheter angiography progressively reduces the likelihood of identifying extravasation, which is required to target embolization.
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Affiliation(s)
- Ram Kishore Gurajala
- 1 Section of Vascular and Interventional Radiology, Imaging Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Ehsan Fayazzadeh
- 1 Section of Vascular and Interventional Radiology, Imaging Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Elie Nasr
- 2 Department of Nuclear Medicine, Imaging Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Sankaran Shrikanthan
- 2 Department of Nuclear Medicine, Imaging Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Shyam Srinivas
- 2 Department of Nuclear Medicine, Imaging Institute, Cleveland Clinic , Cleveland, OH , USA
| | - Karunakaravel Karuppasamy
- 1 Section of Vascular and Interventional Radiology, Imaging Institute, Cleveland Clinic , Cleveland, OH , USA
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tripathi A, Supko J, Gray K, Melnick Z, Taplin ME, Choudhury A, Pomerantz M, Bellmunt J, Yu C, Sun Z, Srinivas S, Kantoff P, Sweeney C, Harshman L. Pharmacokinetic (PK) analysis of concurrent administration of enzalutamide (enza) and crizotinib (crizo) in patients with metastatic castration resistant prostate cancer (CRPC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy284.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Almeida D, de Oliveira C, Mariano R, Kater F, Souza M, Ruiz-Schutz V, Yamamura R, Saraiva De Carvalho R, Maluf F, Morgans A, Srinivas S, Gupta S, Dorff T, Yu E, Schutz F. Non-metastatic castration-resistant prostate cancer (nmCRPC): Meta-analysis of efficacy and safety with novel hormonal agents apalutamide and enzalutamide. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy284.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chowdhury S, Feyerabend S, Loriot Y, Necchi A, Gupta S, Josephs D, Rodríguez-Vida A, Srinivas S, Zakharia Y, Nepert D, Wride K, Thomas D, Loehr A, Simmons A, Grivas P. ATLAS: A phase II, open-label study of rucaparib in patients (pts) with locally advanced (unresectable) or metastatic urothelial carcinoma. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy283.137] [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: 11/12/2022] Open
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Hegde R, Niranjana KV, Srinivas S, Danorkar BA, Singh SK. Site-Specific Land Resource Inventory for Scientific Planning of Sujala Watersheds in Karnataka. CURR SCI INDIA 2018. [DOI: 10.18520/cs/v115/i4/644-652] [Citation(s) in RCA: 7] [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: 11/15/2022]
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Colevas AD, Bedi N, Chang S, Nieves UYM, Chatterjee S, Davidzon GA, Srinivas S, Le QT, Gambhir A, Sunwoo JB. A study to evaluate immunological response to PD-1 inhibition in squamous cell carcinoma of the head and neck (SCCHN) using novel PET imaging with [18F]F-AraG. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.6050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Nikita Bedi
- Stanford Clinical Trials Office, Stanford, CA
| | - Serena Chang
- Institute for Immunity, Transplantation and Infection, Stanford School of Medicine, Stanford, CA
| | | | | | | | | | - Quynh-Thu Le
- Stanford University Medical Center, Stanford, CA
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Sonni I, Baratto L, Park S, Hatami N, Srinivas S, Davidzon G, Gambhir SS, Iagaru A. Initial experience with a SiPM-based PET/CT scanner: influence of acquisition time on image quality. EJNMMI Phys 2018; 5:9. [PMID: 29666972 PMCID: PMC5904089 DOI: 10.1186/s40658-018-0207-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 02/21/2018] [Indexed: 12/21/2022] Open
Abstract
Background A newly introduced PET/CT scanner (Discovery Meaningful Insights—DMI, GE Healthcare) includes the silicon photomultiplier (SiPM) with time-of-flight (TOF) technology first used in the GE SIGNA PET/MRI. In this study, we investigated the impact of various acquisition times on image quality using this SiPM-based PET/CT. Methods We reviewed data from 58 participants with cancer who were scanned using the DMI PET/CT scanner. The administered dosages ranged 295.3–429.9 MBq (mean ± SD 356.3 ± 37.4) and imaging started at 71–142 min (mean ± SD 101.41 ± 17.52) after administration of the radiopharmaceutical. The patients’ BMI ranged 19.79–46.16 (mean ± SD 26.55 ± 5.53). We retrospectively reconstructed the raw TOF data at 30, 60, 90, and 120 s/bed and at the standard image acquisition time per clinical protocol (180 or 210 s/bed depending on BMI). Each reconstruction was reviewed blindly by two nuclear medicine physicians and scored 1–5 (1—poor, 5—excellent quality). The liver signal-to-noise ratio (SNR) was used as a quantitative measure of image quality. Results The average scores ± SD of the readers were 2.61 ± 0.83, 3.70 ± 0.92, 4.36 ± 0.82, 4.82 ± 0.39, and 4.91 ± 0.91 for the 30, 60, 90, and 120 s/bed and at standard acquisition time, respectively. Inter-reader agreement on image quality assessment was good, with a weighted kappa of 0.80 (95% CI 0.72–0.81). In the evaluation of the effects of time per bed acquisition on semi-quantitative measurements, we found that the only time point significantly different from the standard time were 30 and 60 s (both with P < 0.001). The effects of dose and BMI were not statistically significant (P = 0.195 and 0.098, respectively). There was a significant positive effect of time on SNR (P < 0.001), as well as a significant negative effect of weight (P < 0.001). Conclusions Our results suggest that despite significant delays from injection to imaging (due to comparison with standard PET/CT) compared to standard clinical operations and even in a population with average BMI > 25, images can be acquired as fast as 90 s/bed using the SiPM PET/CT and still result in very good image quality (average score > 4).
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Affiliation(s)
- Ida Sonni
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA.,Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Lab, Berkeley, CA, USA
| | - Lucia Baratto
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA
| | - Sonya Park
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA
| | - Negin Hatami
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA
| | - Shyam Srinivas
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA
| | - Guido Davidzon
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA
| | - Sanjiv Sam Gambhir
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA.,Molecular Imaging Program at Stanford, Department of Radiology, Stanford University, Stanford, CA, USA
| | - Andrei Iagaru
- Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Stanford University, 300 Pasteur Drive, Stanford, CA, 94305, USA.
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Dilip S, Srinivas S, Mohammed Noufal MN, Ravi K, Krishnaraj R, Charles A. Comparison of surface roughness of enamel and shear bond strength, between conventional acid etching and erbium, chromium-doped: Yttrium scandium-gallium-garnet laser etching - An in vitro study. Dent Res J (Isfahan) 2018; 15:248-255. [PMID: 30123301 PMCID: PMC6073948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The purpose of the study was to evaluate and to compare the shear bond strength (SBS), adhesive remnant index, and surface roughness of the samples bonded after etching with phosphoric acid and erbium, chromium-doped: Yttrium scandium-gallium-garnet (Er, Cr: YSGG) laser. MATERIALS AND METHODS In the present analytical/descriptive study, 90 premolars extracted for orthodontic purposes were used, out of which 75 were randomly divided into five groups where five different methods were used to prepare the enamel for bonding; etching with 37% phosphoric acid for 15 s, irradiation with Er, Cr: YSGG laser at 1 watt for 10 s and 20 s, and irradiation with Er, Cr: YSGG laser at 1.5 watt for 10 s and 20 s. Following this, metal brackets were bonded with Transbond XT. Brackets were debonded 24 h, later and SBS were measured, and adhesive remnant index scores were measured. The remaining 15 teeth were used for surface evaluation of these five groups using three-dimensional optical profiler. The results of the SBS testing, adhesive remnant index) scores, and surface roughness values were analyzed by one-way analysis of variance and Tukey honestly significant difference tests with a significant level at 0.05. RESULTS The difference in bond strength between the laser (1.5 W/20 s) and conventional acid etching was not statistically significant (P > 0.05). For acid etch tech, it was 10.48 Mpa and Laser etch at 1.5 W/20 s 10.46 Mpa bond strength attained by the other groups (1 W/10 Hz, 1 W/20 Hz, and 1.5 W/10 Hz) was significantly less than acid etched, and laser etched (1.5 W/20 Hz) groups with P > 0.05. The surface roughness was found to be similar between the laser- (1.5 W/20 s) and acid-etched groups (P > 0.05). CONCLUSION Irradiation with 1.5 W/20 s Er, Cr: YSGG laser produced bond strength comparable to acid etching.
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Affiliation(s)
- S. Dilip
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India,Address for correspondence: Dr. S. Dilip,, Department of Orthodontia, SRM Dental College, Ramapuram, Chennai - 600 089, Tamil Nadu, India. E-mail:
| | - S. Srinivas
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India
| | | | - K. Ravi
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India
| | - R. Krishnaraj
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India
| | - Anila Charles
- Department of Orthodontia, SRM Dental College, Chennai, Tamil Nadu, India
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Tyser R, Miranda A, Davidson S, Srinivas S, Riley P. 5730Initiation of the first heart beat and its role in cardiomyocyte differentiation. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.5730] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sriram S, Srinivas S, Naveen PSR. A patient with serum creatinine of 61 mg/dl. Indian J Nephrol 2017; 27:69-71. [PMID: 28182048 PMCID: PMC5255995 DOI: 10.4103/0971-4065.179202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Spurious elevation of serum creatinine by Jaffe assay is known to occur due to a variety of substances. This results in subjecting the patient to invasive and complicated procedures such as dialysis. We report a rare case of false elevation of this renal parameter following exposure to an organic solvent.
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Affiliation(s)
- S Sriram
- Department of Nephrology, Manipal Hospital, Visakhapatnam, Andhra Pradesh, India
| | - S Srinivas
- Department of Critical Care, Manipal Hospital, Visakhapatnam, Andhra Pradesh, India
| | - P S R Naveen
- Department of Nephrology, Manipal Hospital, Visakhapatnam, Andhra Pradesh, India
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Sivasankaran M, Jayaraman D, Patel S, Venkateswaran V, Mythili V, Venkatadesikalu M, Srinivas S, Uppuluri R, Raj R. Ushering a new era in the management of hepatitis C in children with haematological disorders. Pediatric Hematology Oncology Journal 2017. [DOI: 10.1016/j.phoj.2017.11.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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