Mobile detection system to evaluate reactive hyperemia using radionuclide plethysmography.
We validated a novel mobile detection system to evaluate reactive hyperemia using the radionuclide plethysmography technique. Twenty-six subjects underwent simultaneously radionuclide plethysmography with strain gauge plethysmography. Strain gauge and radionuclide methods showed excellent reproducibility with intraclass correlation coefficients of 0.96 and 0.89 respectively. There was also a good correlation of flows between the two methods during reactive hyperemia (r = 0.87). We conclude that radionuclide plethysmography using this mobile detection system is a non-invasive alternative to assess forearm blood flow and its dynamic variations during reactive hyperemia.
Department of Nuclear Medicine, Montreal Heart Institute and Université de Montréal, Montreal, Quebec, Canada. francois_harel@hotmail.com
François
F
Harel
Quam
Q
Ngo
Vincent
V
Finnerty
Edgar
E
Hernandez
Paul
P
Khairy
Jocelyn
J
Dupuis
D000328:Adult; D000368:Aged; D019540:Area Under Curve; D002318:Cardiovascular Diseases / Q000150:complications / Q000503:physiopathology; D005260:Female; D005542:Forearm / Q000098:blood supply; D006801:Humans; D006940:Hyperemia / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010991:Plethysmography / Q000295:instrumentation* / Q000379:methods*; D011877:Radionuclide Imaging; D012039:Regional Blood Flow / Q000502:physiology; D015203:Reproducibility of Results