Nontraumatic assessment of left ventricular wall motion and regional stroke volume after myocardial infarction

Journal Article · Fri Apr 01 04:00:00 EST 1977 · J. Nucl. Med.; (United States)

OSTI ID:7112584

Schad, N

The regional contraction patterns of the left ventricle, shortly after myocardial infarction, were assessed from computer-processed scintigraphic images and histograms of the first transit of an intravenously injected radionuclide bolus. Seventy-seven patients with documented myocardial infarction were injected with a compact bolus of /sup 99m/Tc-pertechnetate which was coordinated with the ECG so that it arrived in the superior vena cava during diastole. Precordial activity during the initial passage was recorded in 50-msec intervals with a multicrystal scintillation camera interfaced to a dedicated minicomputer. Data frames of 4 to 7 cardiac cycles were summed into one representative cardiac cycle. In 73 of the 77 patients the images of the representative cycle, along with the corresponding time-activity curves, indicated wall-motion and stroke-volume anomalies corresponding with the electrocardiographic location of the infarct. This nontraumatic, essentially noninvasive technique permits serial examinations of the acutely ill patient for the spatial identification and estimation of suspected myocardial infarcts.

• Research Organization: Municipal Hospital, Passau, Eng.
• OSTI ID: 7112584
• Journal Information: J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 18:4; ISSN JNMEA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
HEART
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MYOCARDIAL INFARCTION
NUCLEI
ODD-EVEN NUCLEI
ORGANS
OXYGEN COMPOUNDS
PERTECHNETATES
RADIOISOTOPE SCANNING
RADIOISOTOPES
SCINTISCANNING
TECHNETIUM 99
TECHNETIUM COMPOUNDS
TECHNETIUM ISOTOPES
TRANSITION ELEMENT COMPOUNDS
YEARS LIVING RADIOISOTOPES