SPECT and Cardiac Resynchronization Therapy
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Ji Chen & Mark J. Boogers & Prem Soman & Ernest V. Garcia
- چاپ و سال / کشور: 2011
Description
Cardiac resynchronization therapy (CRT) has proven benefits in patients with refractory heart failure including improved symptoms, exercise capacity, quality of life, and left ventricular (LV) function, and mortality benefits. At present, CRT is recommended in patients with severe refractory heart failure (New York Heart Association class III or IV), LV ejection fraction.35%, QRS duration. 120 ms, and sinus rhythm. When selected based on these standard indications, 20%to 40% of patients fail to respond to CRT. Important parameters for predicting CRT response, such as LV mechanical dyssynchrony, myocardial scar, and LV pacing lead position, have been studied using phase analysis of gated single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI). This review aims to describe the role of gated SPECT MPI for the comprehensive assessment of those parameters for selection of patients for CRT
Curr Cardiovasc Imaging Rep (2011) 4:199–206 DOI 10.1007/s12410-011-9075-7 Published online: 5 March 2011
