Feasibility of real-time three-dimensional stress echocardiography: pharmacological and semi-supine exercise

Cardiovascular Ultrasound

Research

Marco Scalese¹  Sabrina Molinaro¹  Anca I Corciu¹  Emilio M Pasanisi¹  Lorenza Pratali¹  Rosa Sicari¹ 

[1] CNR, Institute of Clinical Physiology, Pisa, Italy;

关键词: Dobutamine;    Dipyridamole;    Peak Stress;    Left Ventricular Volume;    Stress Echocardiography;   

DOI  :  10.1186/1476-7120-8-10

 received in 2010-02-18, accepted in 2010-03-24,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundReal time three dimensional (RT3D) echocardiography is an accurate and reproducible method for assessing left ventricular shape and function.Aimassess the feasibility and reproducibility of RT3D stress echocardiography (SE) (exercise and pharmacological) in the evaluation of left ventricular function compared to 2D.Methods and resultsOne hundred eleven patients with known or suspected coronary artery disease underwent 2D and RT3DSE. The agreement in WMSI, EDV, ESV measurements was made off-line.The feasibility of RT-3DSE was 67%. The inter-observer variability for WMSI by RT3D echo was higher during exercise and with suboptimal quality images (good: k = 0.88; bad: k = 0.69); and with high heart rate both for pharmacological (HR < 100 bpm, k = 0.83; HR ≥ 100 bpm, k = 0.49) and exercise SE (HR < 120 bpm, k = 0.88; HR ≥ 120 bpm, k = 0.78). The RT3D reproducibility was high for ESV volumes (0.3 ± 14 ml; CI 95%: -27 to 27 ml; p = n.s.).ConclusionsRT3DSE is more vulnerable than 2D due to tachycardia, signal quality, patient decubitus and suboptimal resting image quality, making exercise RT3DSE less attractive than pharmacological stress.

【 授权许可】

CC BY   
© Pratali et al; licensee BioMed Central Ltd. 2010