Education

Medical School
Shiraz University of Medical Sciences (2007)
Residency
Alameda County Medical Center (2015), Internal Medicine
Fellowship
Los Angeles Biomedical Research Institute at Harbor-UCLA (2017), Cardiovascular Imaging
Fellowship
Los Angeles County Harbor UCLA Medical Center (2020), Cardiology

Publications

Featured Publications LegendFeatured Publications

A novel density-volume calcium score by non-contrast CT predicts coronary plaque burden on coronary CT angiography: Results from the MACS (Multicenter AIDS cohort study).
Nakanishi R, Delaney JA, Post WS, Dailing C, Blaha MJ, Palella F, Witt M, Brown TT, Kingsley LA, Osawa K, Ceponiene I, Nezarat N, Rahmani S, Kanisawa M, Jacobson L, Budoff MJ, J Cardiovasc Comput Tomogr 2020 May - Jun 14 3 266-271
HIV Infection Is Associated with Greater Left Ventricular Mass in the Multicenter AIDS Cohort Study.
Hutchins E, Wang R, Rahmani S, Nakanishi R, Haberlen S, Kingsley L, Witt MD, Palella FJ, Jacobson L, Budoff MJ, Post WS, AIDS Res Hum Retroviruses 2019 08 35 8 755-761
Correlation of Arterial Stiffness With Left Atrial Volume Index and Left Ventricular Mass Index in Young Adults: Evaluation by Coronary Computed Tomography Angiography.
Osawa K, Nakanishi R, Miyoshi T, Rahmani S, Ceponiene I, Nezarat N, Kanisawa M, Qi H, Jayawardena E, Kim N, Ito H, Budoff MJ, Heart Lung Circ 2019 Jun 28 6 932-938
Coronary Artery Calcium Progression Is Associated With Coronary Plaque Volume Progression: Results From a Quantitative Semiautomated Coronary Artery Plaque Analysis.
Ceponiene I, Nakanishi R, Osawa K, Kanisawa M, Nezarat N, Rahmani S, Kissel K, Kim M, Jayawardena E, Broersen A, Kitslaar P, Budoff MJ, JACC Cardiovasc Imaging 2018 12 11 12 1785-1794
Coronary Artery Calcium on Noncontrast Thoracic Computerized Tomography Scans and All-Cause Mortality.
Budoff MJ, Lutz SM, Kinney GL, Young KA, Hokanson JE, Barr RG, Steiner R, Nath H, Lopez-Garcia C, Duca LM, Rahmani S, Osawa K, Regan EA, Li D, Casaburi R, Circulation 2018 11 138 21 2437-2438
Automated estimation of image quality for coronary computed tomographic angiography using machine learning.
Nakanishi R, Sankaran S, Grady L, Malpeso J, Yousfi R, Osawa K, Ceponiene I, Nazarat N, Rahmani S, Kissel K, Jayawardena E, Dailing C, Zarins C, Koo BK, Min JK, Taylor CA, Budoff MJ, Eur Radiol 2018 Sep 28 9 4018-4026
Ischemic stroke/transient ischemic attack events and carotid artery disease in the absence of or with minimal coronary artery calcification: Results from the Multi-Ethnic Study of Atherosclerosis.
Osawa K, Nakanishi R, McClelland RL, Polak JF, Bishop W, Sacco RL, Ceponiene I, Nezarat N, Rahmani S, Qi H, Kanisawa M, Budoff MJ, Atherosclerosis 2018 08 275 22-27
Multicenter AIDS Cohort Study Quantitative Coronary Plaque Progression Study: rationale and design.
Nakanishi R, Post WS, Osawa K, Jayawardena E, Kim M, Sheidaee N, Nezarat N, Rahmani S, Kim N, Hathiramani N, Susarla S, Palella F, Witt M, Blaha MJ, Brown TT, Kingsley L, Haberlen SA, Dailing C, Budoff MJ, Coron Artery Dis 2018 Jan 29 1 23-29
The diagnostic performance of SPECT-MPI to predict functional significant coronary artery disease by fractional flow reserve derived from CCTA (FFRCT): sub-analysis from ACCURACY and VCT001 studies.
Nakanishi R, Osawa K, Ceponiene I, Huth G, Cole J, Kim M, Nezarat N, Rahmani S, Li D, Gupta S, Rogers C, Dailing C, Budoff MJ, Int J Cardiovasc Imaging 2017 Dec 33 12 2067-2072
Rationale and design of a randomized trial of apixaban vs warfarin to evaluate atherosclerotic calcification and vulnerable plaque progression.
Osawa K, Nakanishi R, Win TT, Li D, Rahmani S, Nezarat N, Sheidaee N, Budoff MJ, Clin Cardiol 2017 Oct 40 10 807-813