4 results on '"Avik Som"'
Search Results
2. Racial and Ethnic Disparities in Disease Severity on Admission Chest Radiographs among Patients Admitted with Confirmed Coronavirus Disease 2019: A Retrospective Cohort Study
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Anand K. Narayan, Matthew D. Li, Francis Deng, Caitlin M Dugdale, Avik Som, Brent P. Little, Emily P. Hyle, Joseph R. Betancourt, Efren J. Flores, Dexter P. Mendoza, Nicholos Joseph, Min Lang, and Nicholas J. Reid
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medicine.medical_specialty ,business.industry ,Hazard ratio ,Retrospective cohort study ,medicine.disease ,Intensive care unit ,Confidence interval ,law.invention ,Pneumonia ,law ,Internal medicine ,Severity of illness ,medicine ,Radiology, Nuclear Medicine and imaging ,Young adult ,business ,Cohort study - Abstract
Background Disease severity on chest radiographs has been associated with higher risk of disease progression and adverse outcomes from coronavirus disease 2019 (COVID-19). Few studies have evaluated COVID-19-related racial and/or ethnic disparities in radiology. Purpose To evaluate whether non-White minority patients hospitalized with confirmed COVID-19 infection presented with increased severity on admission chest radiographs compared with White or non-Hispanic patients. Materials and Methods This single-institution retrospective cohort study was approved by the institutional review board. Patients hospitalized with confirmed COVID-19 infection between March 17, 2020, and April 10, 2020, were identified by using the electronic medical record (n = 326; mean age, 59 years ±17 [standard deviation]; male-to-female ratio: 188:138). The primary outcome was the severity of lung disease on admission chest radiographs, measured by using the modified Radiographic Assessment of Lung Edema (mRALE) score. The secondary outcome was a composite adverse clinical outcome of intubation, intensive care unit admission, or death. The primary exposure was the racial and/or ethnic category: White or non-Hispanic versus non-White (ie, Hispanic, Black, Asian, or other). Multivariable linear regression analyses were performed to evaluate the association between mRALE scores and race and/or ethnicity. Results Non-White patients had significantly higher mRALE scores (median score, 6.1; 95% confidence interval [CI]: 5.4, 6.7) compared with White or non-Hispanic patients (median score, 4.2; 95% CI: 3.6, 4.9) (unadjusted average difference, 1.8; 95% CI: 0.9, 2.8; P < .01). For both White (adjusted hazard ratio, 1.3; 95% CI: 1.2, 1.4; P < .001) and non-White (adjusted hazard ratio, 1.2; 95% CI: 1.1, 1.3; P < .001) patients, increasing mRALE scores were associated with a higher likelihood of experiencing composite adverse outcome with no evidence of interaction (P = .16). Multivariable linear regression analyses demonstrated that non-White patients presented with higher mRALE scores at admission chest radiography compared with White or non-Hispanic patients (adjusted average difference, 1.6; 95% CI: 0.5, 2.7; P < .01). Adjustment for hypothesized mediators revealed that the association between race and/or ethnicity and mRALE scores was mediated by limited English proficiency (P < .01). Conclusion Non-White patients hospitalized with coronavirus disease 2019 infection were more likely to have a higher severity of disease on admission chest radiographs than White or non-Hispanic patients, and increased severity was associated with worse outcomes for all patients. © RSNA, 2020 Online supplemental material is available for this article.
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- 2020
3. Resident-Led Medical Student Radiology Research Interest Group: An Engine for Recruitment, Research, and Mentoring—Radiology In Training
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Daniel B. Chonde, Avik Som, John Di Capua, Rory L. Cochran, and Min Lang
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medicine.medical_specialty ,Students, Medical ,ComputingMilieux_THECOMPUTINGPROFESSION ,business.industry ,Research ,MEDLINE ,Internship and Residency ,Mentoring ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Dogs ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Interest group ,medicine ,Animals ,Humans ,Radiology, Nuclear Medicine and imaging ,Radiology ,Personnel Selection ,business ,Career development - Abstract
A radiology research interest group of medical students, with the necessary infrastructure and resident leadership, may create a productive environment for research and career development for all p...
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- 2021
4. Pulmonary Vascular Manifestations of COVID-19 Pneumonia
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Min Lang, Brent P. Little, Efren J. Flores, Nicholas J. Reid, Dexter P. Mendoza, Avik Som, Denston Carey, Jo-Anne O. Shepard, and Matthew D. Li
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2019-20 coronavirus outbreak ,Pathology ,medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,business.industry ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,Pulmonary vessels ,medicine.disease ,respiratory tract diseases ,Hypoxemia ,Pneumonia ,medicine ,Radiology, Nuclear Medicine and imaging ,Vascular pathology ,medicine.symptom ,business ,Perfusion ,Original Research - Abstract
Background Parenchymal findings in COVID-19 pneumonia on computed tomography (CT) have been well characterized. However, the role of pulmonary vascular pathology in COVID-19 pneumonia is still not well understood. Purpose To investigate pulmonary vascular abnormalities on CT pulmonary angiography in patients with COVID-19 pneumonia. Materials and Methods In this retrospective study, 48 patients with RT-PCR confirmed COVID-19 infection who had undergone CT pulmonary angiography between 3/22/20 and 4/5/20 in our large urban health care system were included. Patient demographics and clinical data were collected through the electronic medical record system. Twenty-five patients underwent dual energy CT (DECT) as part of the standard CT pulmonary angiogram protocol at a subset of the hospitals. Two thoracic radiologists independently assessed all studies. Disagreement in assessment was resolved by consensus discussion with a third thoracic radiologist. Results Of the 48 patients, 45 patients required admission, with 18 admitted to the ICU, and 13 requiring intubation. Seven patients (15%) were found to have pulmonary emboli. Dilated vessels were seen in 41 cases (85%), with 38 (78%) and 27 (55%) of cases demonstrating vessel enlargement within and outside of lung opacities, respectively. Dilated distal vessels extending to the pleura and fissures were seen in 40 cases (82%) and 30 cases (61%), respectively. On DECT, mosaic perfusion pattern was observed in 24 cases (96%), regional hyperemia overlapping with areas of pulmonary opacities or immediately surrounding the opacities were seen in 13 cases (52%), opacities associated with corresponding oligemia were seen in 24 cases (96%), and hyperemic halo was seen in 9 cases (36%). Conclusion Pulmonary vascular abnormalities such as vessel enlargement and regional mosaic perfusion patterns are common in COVID-19 pneumonia. Perfusion abnormalities are also frequently observed at DECT in COVID-19 pneumonia and may suggest an underlying vascular process.
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- 2020
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