Current cardiology reports · 2020
Microvascular Angina Diagnosed by Absolute PET Myocardial Blood Flow Quantification.
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Pelletier-Galarneau Matthieu, Dilsizian Vasken
Аннотация
PURPOSE OF REVIEW: The aim of this review is to provide an update on the use of positron emission tomography (PET) with myocardial blood flow (MBF) quantification for the diagnosis and management of patients with microvascular disease.
RECENT FINDINGS: It is now recognized that a large proportion of patients with classical angina and non-obstructive epicardial disease are suffering from microvascular angina. Microvascular angina shares several key features with epicardial coronary disease, including many risk factors. Clinical criteria for the diagnosis of microvascular angina were recently proposed and PET imaging is called to play a central role in evaluation of these patients. Indeed, PET allows non-invasive measurements of MBF and flow reserve, which are altered in microvascular dysfunction. Furthermore, PET with flow quantification provides independent prognostic information and has the potential to monitor response to therapy in microvascular disease. PET with MBF quantification allows detection of microvascular dysfunction and plays a key role in the investigation of patients with suspected microvascular angina.
RECENT FINDINGS: It is now recognized that a large proportion of patients with classical angina and non-obstructive epicardial disease are suffering from microvascular angina. Microvascular angina shares several key features with epicardial coronary disease, including many risk factors. Clinical criteria for the diagnosis of microvascular angina were recently proposed and PET imaging is called to play a central role in evaluation of these patients. Indeed, PET allows non-invasive measurements of MBF and flow reserve, which are altered in microvascular dysfunction. Furthermore, PET with flow quantification provides independent prognostic information and has the potential to monitor response to therapy in microvascular disease. PET with MBF quantification allows detection of microvascular dysfunction and plays a key role in the investigation of patients with suspected microvascular angina.