Magnetic Resonance Perfusion Measurements for the Noninvasive Detection of Coronary Artery Disease Export

@article{nagel2003, abstract = {Background-- With MRI, an index of myocardial perfusion reserve (MPRI) can be determined. We assessed the value of this technique for the noninvasive detection of coronary artery disease (CAD) in patients with suspected CAD. Methods and Results-- Eighty-four patients referred for a primary diagnostic coronary angiography were examined with a 1.5 T MRI tomograph (Philips-ACS). For each heartbeat, 5 slices were acquired during the first pass of 0.025 mmol gadolinium-diethylenetriamine pentaacetic acid/kg body weight before and during adenosine vasodilation by using a turbo-gradient echo/echo-planar imaging-hybrid sequence. MPRI was determined from the alteration of the upslope of the myocardial signal intensity curves for 6 equiangular segments per slice. Receiver operating characteristics were performed for different criteria to differentiate ischemic and nonischemic segments. Prevalence of CAD was 51\%. Best results were achieved when only the 3 inner slices were assessed and a threshold value of 1.1 was used for the second smallest value as a marker for significant CAD. This approach yielded a sensitivity of 88\%, specificity of 90\%, and accuracy of 89\%. Conclusion-- The determination of MPRI with MRI yields a high diagnostic accuracy in patients with suspected CAD. 10.1161/01.CIR.0000080915.35024.A9}, author = {Nagel, Eike and Klein, Christoph and Paetsch, Ingo and Hettwer, Sabine and Schnackenburg, Bernhard and Wegscheider, Karl and Fleck, Eckart}, citeulike-article-id = {1648149}, citeulike-linkout-0 = {http://dx.doi.org/10.1161/01.CIR.0000080915.35024.A9}, citeulike-linkout-1 = {http://circ.ahajournals.org/content/circulationaha;108/4/432.abstract}, citeulike-linkout-2 = {http://circ.ahajournals.org/content/circulationaha;108/4/432.full.pdf}, citeulike-linkout-3 = {http://circ.ahajournals.org/cgi/content/abstract/108/4/432}, citeulike-linkout-4 = {http://view.ncbi.nlm.nih.gov/pubmed/12860910}, citeulike-linkout-5 = {http://www.hubmed.org/display.cgi?uids=12860910}, day = {29}, doi = {10.1161/01.CIR.0000080915.35024.A9}, journal = {Circulation}, keywords = {contrast, imaging, mri}, month = {July}, number = {4}, pages = {432--437}, posted-at = {2009-10-20 16:09:04}, priority = {2}, title = {Magnetic Resonance Perfusion Measurements for the Noninvasive Detection of Coronary Artery Disease}, url = {http://dx.doi.org/10.1161/01.CIR.0000080915.35024.A9}, volume = {108}, year = {2003} }

TY - JOUR ID - nagel2003 L3 - citeulike-article-id:1648149 N2 - Background-- With MRI, an index of myocardial perfusion reserve (MPRI) can be determined. We assessed the value of this technique for the noninvasive detection of coronary artery disease (CAD) in patients with suspected CAD. Methods and Results-- Eighty-four patients referred for a primary diagnostic coronary angiography were examined with a 1.5 T MRI tomograph (Philips-ACS). For each heartbeat, 5 slices were acquired during the first pass of 0.025 mmol gadolinium-diethylenetriamine pentaacetic acid/kg body weight before and during adenosine vasodilation by using a turbo-gradient echo/echo-planar imaging-hybrid sequence. MPRI was determined from the alteration of the upslope of the myocardial signal intensity curves for 6 equiangular segments per slice. Receiver operating characteristics were performed for different criteria to differentiate ischemic and nonischemic segments. Prevalence of CAD was 51%. Best results were achieved when only the 3 inner slices were assessed and a threshold value of 1.1 was used for the second smallest value as a marker for significant CAD. This approach yielded a sensitivity of 88%, specificity of 90%, and accuracy of 89%. Conclusion-- The determination of MPRI with MRI yields a high diagnostic accuracy in patients with suspected CAD. 10.1161/01.CIR.0000080915.35024.A9 IS - 4 JF - Circulation EP - 437 TI - Magnetic Resonance Perfusion Measurements for the Noninvasive Detection of Coronary Artery Disease VL - 108 SP - 432 KW - contrast KW - imaging KW - mri AU - Nagel, Eike AU - Klein, Christoph AU - Paetsch, Ingo AU - Hettwer, Sabine AU - Schnackenburg, Bernhard AU - Wegscheider, Karl AU - Fleck, Eckart PY - 2003/07/29/ UR - http://dx.doi.org/10.1161/01.CIR.0000080915.35024.A9 ER -