A miniature cadmium telluride detector module for continuous monitoring of left-ventricular function.
The authors describe a miniature cadmium telluride (CdTe) detector module for continuous monitoring of ventricular function using an equilibrium radionuclide blood-pool label. The detector and collimator are small, light, and suitable for direct attachment to the chest wall. Clinical studies in 18 patients using a prototype system demonstrated reasonably good correlation with left-ventricular ejection fractions (LVEF) determined by first-pass studies performed with a multicrystal scintillation camera (r = 0.74) and gated equilibrium studies performed with a computerized sodium iodide (Nal) probe (r = 0.76). The CdTe device may prove to be useful in patients in intensive and coronary care units as well as in ambulatory patients.
D000328:Adult; D000368:Aged; D002104:Cadmium; D019187:Cadmium Compounds; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006331:Heart Diseases / Q000000981:diagnostic imaging; D006334:Heart Function Tests / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D008904:Miniaturization; D008991:Monitoring, Physiologic / Q000379:methods*; D011877:Radionuclide Imaging / Q000295:instrumentation*; D013318:Stroke Volume; D013691:Tellurium
D019187:Cadmium Compounds; D002104:Cadmium; D013691:Tellurium; C028337:cadmium telluride