Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

My NCBI Filters
Text availability
Article attribute
Article type
Publication date

Search Results

74 results
Filters applied: . Clear all Results are displayed in a computed author sort order. Results by year timeline is unavailable
Page 1
Generating positive contrast from off-resonant spins with steady-state free precession magnetic resonance imaging: theory and proof-of-principle experiments.
Dharmakumar R, Koktzoglou I, Li D. Dharmakumar R, et al. Phys Med Biol. 2006 Sep 7;51(17):4201-15. doi: 10.1088/0031-9155/51/17/006. Epub 2006 Aug 8. Phys Med Biol. 2006. PMID: 16912377
Oxygen-sensitive contrast in blood for steady-state free precession imaging.
Dharmakumar R, Hong J, Brittain JH, Plewes DB, Wright GA. Dharmakumar R, et al. Magn Reson Med. 2005 Mar;53(3):574-83. doi: 10.1002/mrm.20393. Magn Reson Med. 2005. PMID: 15723410
A novel microbubble construct for intracardiac or intravascular MR manometry: a theoretical study.
Dharmakumar R, Plewes DB, Wright GA. Dharmakumar R, et al. Phys Med Biol. 2005 Oct 21;50(20):4745-62. doi: 10.1088/0031-9155/50/20/001. Epub 2005 Sep 27. Phys Med Biol. 2005. PMID: 16204870
Detecting microcirculatory changes in blood oxygen state with steady-state free precession imaging.
Dharmakumar R, Qi X, Hong J, Wright GA. Dharmakumar R, et al. Magn Reson Med. 2006 Jun;55(6):1372-80. doi: 10.1002/mrm.20911. Magn Reson Med. 2006. PMID: 16680697
Cardiac phase-resolved blood oxygen-sensitive steady-state free precession MRI for evaluating the functional significance of coronary artery stenosis.
Dharmakumar R, Arumana JM, Larson AC, Chung Y, Wright GA, Li D. Dharmakumar R, et al. Invest Radiol. 2007 Mar;42(3):180-8. doi: 10.1097/01.rli.0000254407.26068.54. Invest Radiol. 2007. PMID: 17287648
RESULTS: MODs caused by coronary stenosis were observed with the SSFP-based technique and were strongly correlated with microsphere-based regional flow measurements (r=0.80, P<0.01). ...
RESULTS: MODs caused by coronary stenosis were observed with the SSFP-based technique and were strongly correlated with microsphere-based re …
Factors influencing fast low angle positive contrast steady-state free precession (FLAPS) magnetic resonance imaging.
Dharmakumar R, Koktzoglou I, Li D. Dharmakumar R, et al. Phys Med Biol. 2007 Jun 7;52(11):3261-73. doi: 10.1088/0031-9155/52/11/021. Epub 2007 May 15. Phys Med Biol. 2007. PMID: 17505101
Results show that scan parameters (T(R), flip angle, B0), physical properties of the perturber (size and concentration of shift reagent) and the ratio of the relaxation constants (T1/T2) of the medium are significant factors influencing the FLAPS-based positive contrast... …
Results show that scan parameters (T(R), flip angle, B0), physical properties of the perturber (size and concentration of shift reage …
Dephased FLAPS for improved visualization of susceptibility-shifted passive devices for real-time interventional MRI.
Koktzoglou I, Li D, Dharmakumar R. Koktzoglou I, et al. Among authors: dharmakumar r. Phys Med Biol. 2007 Jul 7;52(13):N277-86. doi: 10.1088/0031-9155/52/13/N01. Epub 2007 May 25. Phys Med Biol. 2007. PMID: 17664566
Deriving blood-oxygen-level-dependent contrast in MRI with T2*-weighted, T2-prepared and phase-cycled SSFP methods: theory and experiment.
Arumana JM, Li D, Dharmakumar R. Arumana JM, et al. Among authors: dharmakumar r. Magn Reson Med. 2008 Mar;59(3):561-70. doi: 10.1002/mrm.21511. Magn Reson Med. 2008. PMID: 18306408
Assessment of regional myocardial oxygenation changes in the presence of coronary artery stenosis with balanced SSFP imaging at 3.0 T: theory and experimental evaluation in canines.
Dharmakumar R, Arumana JM, Tang R, Harris K, Zhang Z, Li D. Dharmakumar R, et al. J Magn Reson Imaging. 2008 May;27(5):1037-45. doi: 10.1002/jmri.21345. J Magn Reson Imaging. 2008. PMID: 18425840
Off-resonance positive contrast imaging of a passive endomyocardial catheter in swine.
Dharmakumar R, Koktzoglou I, Tang R, Harris KR, Beohar N, Li D. Dharmakumar R, et al. Phys Med Biol. 2008 Jul 7;53(13):N249-57. doi: 10.1088/0031-9155/53/13/N02. Epub 2008 Jun 19. Phys Med Biol. 2008. PMID: 18562781
74 results
Jump to page
Feedback