scholarly journals Deep‐Learning‐Based Preprocessing for Quantitative Myocardial Perfusion MRI

2019 ◽  
Vol 51 (6) ◽  
pp. 1689-1696 ◽  
Author(s):  
Cian M. Scannell ◽  
Mitko Veta ◽  
Adriana D.M. Villa ◽  
Eva C. Sammut ◽  
Jack Lee ◽  
...  
Keyword(s):  
Deep Learning ◽  
Myocardial Perfusion ◽  
Perfusion Mri ◽  
Quantitative Myocardial Perfusion

scholarly journals Automated Inline Analysis of Myocardial Perfusion MRI with Deep Learning

2020 ◽  
Vol 2 (6) ◽  
pp. e200009
Author(s):  
Hui Xue ◽  
Rhodri H. Davies ◽  
Louise A. E. Brown ◽  
Kristopher D. Knott ◽  
Tushar Kotecha ◽  
...  
Keyword(s):  
Deep Learning ◽  
Myocardial Perfusion ◽  
Perfusion Mri

scholarly journals Influence of coronary flow profiles on bolus shape and quantitative myocardial perfusion MRI

2012 ◽  
Vol 14 (Suppl 1) ◽  
pp. W73
Author(s):  
Dirk Graafen ◽  
Julia Hamer ◽  
Regine Schmidt ◽  
Melanie Schmitt ◽  
Stefan Weber ◽  
...  
Keyword(s):  
Myocardial Perfusion ◽  
Coronary Flow ◽  
Perfusion Mri ◽  
Flow Profiles ◽  
Quantitative Myocardial Perfusion

scholarly journals Comparison of non-linearity correction methods for quantitative myocardial perfusion MRI

2015 ◽  
Vol 17 (S1) ◽  
Author(s):  
David A Broadbent ◽  
John D Biglands ◽  
David P Ripley ◽  
Sven Plein ◽  
David L Buckley
Keyword(s):  
Myocardial Perfusion ◽  
Perfusion Mri ◽  
Quantitative Myocardial Perfusion

scholarly journals Interstudy repeatability of self-gated quantitative myocardial perfusion MRI

2015 ◽  
Vol 43 (6) ◽  
pp. 1369-1378 ◽  
Author(s):  
Devavrat Likhite ◽  
Promporn Suksaranjit ◽  
Ganesh Adluru ◽  
Nan Hu ◽  
Cindy Weng ◽  
...  
Keyword(s):  
Myocardial Perfusion ◽  
Perfusion Mri ◽  
Quantitative Myocardial 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.

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