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Ebook Practical textbook of cardiac CT and MRI: Part 2

(BQ) Part 2 book "Practical textbook of cardiac CT and MRI" presents the following contents: Ischemic heart disease, non ischemic cardiomyopathy, valvular heart disease, technical overviews, cardiac tumors and pericardial diseases. | Part II Ischemic Heart Disease Evaluation of Myocardial Ischemia Using Perfusion Study 10 Joon-Won Kang and Sung Min Ko Contents 10.1 Protocol and Assessment of CT Perfusion. 135 10.1.1 Snapshot or Helical CT Perfusion. 136 10.1.2 Dynamic CT Perfusion. 137 10.1.3 Dual-Energy CT DECT Perfusion. 137 10.1.4 Assessment of CT Perfusion. 137 10.2 Protocol and Assessment of MR Perfusion. 139 10.2.1 Protocols . 141 10.2.2 Assessment of MR Perfusion. 141 10.3 Representative Cases of CT Perfusion and MR Perfusion . 142 10.3.1 One-Vessel Disease . 142 10.3.2 Multi-vessel Disease . 145 10.3.3 Microvascular Angina . 145 10.3.4 Additional Value of CT Perfusion and MR Perfusion over Coronary CT Angiography CCTA . 148 10.4 Limitations and Artifacts of CT Perfusion and MR Perfusion . 150 10.4.1 CT Perfusion. 150 10.4.2 MR Perfusion. 152 Conclusions. 154 Recommended Reading . 154 Electronic supplementary material Supplementary material is available in the online version of this chapter at 10.1007 978-3-642-36397-9_10. J.-W. Kang Department of Radiology and Research Institute of Radiology Asan Medical Center University of Ulsan College of Medicine Seoul Republic of Korea e-mail joonwkang@naver.com S.M. Ko MD Department of Radiology Konkuk University Hospital Seoul Republic of Korea e-mail ksm9723@yahoo.co.kr Abstract Limitations of CT angiography and invasive coronary angiography are that their ability to distinguish the physiologic effects of coronary artery stenosis and to detect myocardial ischemia is quite low. Further evaluation of myocardial function such as radioisotope scan or stress function tests is often required after identifying coronary artery stenosis lesions that also requires costs and additional radiation exposure. With the advance of CT and MRI myocardial perfusion is easily and reliably assessed. Myocardial blood flow and volume can be calculated using dynamic scan. The scan protocols how to assess the perfusion study using CT and MR and artifacts and limitations