Theory-Based Signal Calibration with Single-Point T1 Measurements for First-Pass Quantitative Perfusion MRI Studies

2006 ◽  
Vol 13 (6) ◽  
pp. 686-693 ◽  
Author(s):  
Alexandru Cernicanu ◽  
Leon Axel
Keyword(s):  
Single Point ◽  
Perfusion Mri ◽  
Quantitative Perfusion ◽  
Mri Studies ◽  
First Pass

scholarly journals First-pass myocardial stress perfusion MRI using k-t BLAST at an open MR-system: initial results in comparison to FFR measurements

2013 ◽  
Vol 15 (Suppl 1) ◽  
pp. P184
Author(s):  
Ortrud Kosiek ◽  
Katharina A Strach ◽  
Bernhard Schnackenburg ◽  
Alexander Schmeisser ◽  
Jan Smid ◽  
...  
Keyword(s):  
Perfusion Mri ◽  
Stress Perfusion ◽  
Myocardial Stress ◽  
First Pass ◽  
Initial Results ◽  
Myocardial Stress Perfusion

Abstract 1681: Evaluation of Quantitative Myocardial Perfusion MRI and TIMI myocardial blush grade (Blush score)

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Hiroshi Nakajima ◽  
Shinya Okamoto ◽  
Hajime Sakuma ◽  
Tairo Kurita ◽  
Motonori Nagata ◽  
...  
Keyword(s):  
Coronary Angiography ◽  
Myocardial Perfusion ◽  
Area Under The Curve ◽  
Primary Angioplasty ◽  
Perfusion Mri ◽  
St Segment Elevation ◽  
Quantitative Perfusion ◽  
Timi Grade ◽  
Significant Difference ◽  
Myocardial Blush Grade

Background: The TIMI myocardial blush grade (MBG) has been shown to be a strong angiographic predictor of mortality in patients with TIMI 3 flow after primary angioplasty. This study was conducted to evaluate the relationship between regional myocardial perfusion quantified by cardiac magnetic resonance and angiographic reperfusion score defined by MBG. Methods: We studied 29 consecutive patients (25 men, age 63±13 years) with ST-segment elevation acute myocardial infarction (LAD lesion: 12, RCA lesion: 16, LCx lesion: 2) who underwent primary angioplasty within 6 hours from the onset and showed TIMI grade 3. MBG was determined on angiography at the end of angioplasty. All patients underwent rest myocardial perfusion MRI during initial hospitalization, and regional MBF (ml/min/g) was quantified by using a Patlak plot method. Myocardial perfusion (MP) ratio was calculated from quantitative perfusion MRI, as MBF in infarction area/MBF in normal area. The optimal cut-off value of MP ratio that can predict MBG 3 on coronary angiography was determined by using a receiver-operating characteristic (ROC) analysis. Results: In 29 patients with TIMI 3 flow after angioplasty, 4 patients had MBG 0–1, 7 had MBG 2 and 18 had MBG 3. The MP ratio in MBG 3 group calculated from quantitative perfusion MRI was significantly higher than the MP ratios in MBG 0 –1 group and MBG 2 group (0.96±0.18 vs. 0.48±0.25, P<0.001; 0.96±0.18 vs. 0.66±0.19, P=0.003, respectively). There was no significant difference between the MP ratios in MBG 0 –1 group and MBG 2 group. The ROC curve revealed that MP ratio of 0.74 is an optimal threshold to distinguish MBG 3 from MBG 0 –2, with a high area under the curve of 0.90. Conclusions: The result of this study demonstrates that MP ratio quantified from rest perfusion MRI correlated well with MBG on coronary angiography.

scholarly journals Accelerated dual-contrast first-pass perfusion MRI of the mouse heart: Development and application to diet-induced obese mice

2014 ◽  
Vol 73 (3) ◽  
pp. 1237-1245 ◽  
Author(s):  
Nivedita K. Naresh ◽  
Xiao Chen ◽  
Rene J. Roy ◽  
Patrick F. Antkowiak ◽  
Brian H. Annex ◽  
...  
Keyword(s):  
Heart Development ◽  
Perfusion Mri ◽  
Mouse Heart ◽  
Obese Mice ◽  
Pass Perfusion ◽  
First Pass ◽  
First Pass Perfusion

scholarly journals Early detection of antiangiogenic treatment responses in a mouse xenograft tumor model using quantitative perfusion MRI

2014 ◽  
Vol 3 (1) ◽  
pp. 47-60 ◽  
Author(s):  
Reshmi Rajendran ◽  
Wei Huang ◽  
Annie Mei Yee Tang ◽  
Jie Ming Liang ◽  
Stephanie Choo ◽  
...  
Keyword(s):  
Early Detection ◽  
Tumor Model ◽  
Perfusion Mri ◽  
Xenograft Tumor ◽  
Antiangiogenic Treatment ◽  
Mouse Xenograft ◽  
Quantitative Perfusion ◽  
Xenograft Tumor Model ◽  
Treatment Responses

scholarly journals All-systolic non-ECG-gated myocardial perfusion MRI: Feasibility of multi-slice continuous first-pass imaging

2015 ◽  
Vol 74 (6) ◽  
pp. 1661-1674 ◽  
Author(s):  
Behzad Sharif ◽  
Reza Arsanjani ◽  
Rohan Dharmakumar ◽  
C. Noel Bairey Merz ◽  
Daniel S. Berman ◽  
...  
Keyword(s):  
Myocardial Perfusion ◽  
Perfusion Mri ◽  
First Pass

Mapping of the cerebral vascular response to hypoxia and hypercapnia using quantitative perfusion MRI at 3 T

2007 ◽  
Vol 21 (5) ◽  
pp. 464-472 ◽  
Author(s):  
Ulrike Nöth ◽  
Futoshi Kotajima ◽  
Ralf Deichmann ◽  
Robert Turner ◽  
Douglas R. Corfield
Keyword(s):  
Perfusion Mri ◽  
Vascular Response ◽  
Quantitative Perfusion ◽  
Cerebral Vascular

scholarly journals ExploreASL: An image processing pipeline for multi-center ASL perfusion MRI studies

NeuroImage ◽  
2020 ◽  
Vol 219 ◽  
pp. 117031 ◽  
Author(s):  
Henk J.M.M. Mutsaerts ◽  
Jan Petr ◽  
Paul Groot ◽  
Pieter Vandemaele ◽  
Silvia Ingala ◽  
...  
Keyword(s):  
Image Processing ◽  
Perfusion Mri ◽  
Processing Pipeline ◽  
Mri Studies
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