Sequential radionuclide angiographic assessment of left and right ventricular performance and quantitative thallium-201 scintigraphy following acute myocardial infarction
Sequential changes in radionuclide angiographic measurement of left and right ventricular performance and quantitative thallium-201 scintigraphy were studied in 20 patients sustaining their first acute myocardial infarction (AMI). The studies were performed on the average 29.4 hours and 9.4 days after hospital admission. Anterior infarction had greater impairment of left ventricular (LV) performance in terms of ejection fraction and percentage of abnormal contraction area in addition to larger thallium-201 perfusion defects. At the time of the late study evidence of thallium-201 perfusion of infarcted area was seen in 14 of 20 patients, five of whom demonstrated improvement of regional wall motion. The remaining patients in the reperfused group and all of the patients in the nonperfused group failed to show evidence of LV functional improvement. This study indicates that reperfusion as measured by thallium-201 scintigraphy does occur spontaneously in 70% of patients with AMI and only in those patients with established reperfusion is there any potential for improvement in LV performance.
- Research Organization:
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, MI
- OSTI ID:
- 6749634
- Journal Information:
- Am. Heart J.; (United States), Vol. 107:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HEART
SCINTISCANNING
BLOOD CIRCULATION
MEDICAL SURVEILLANCE
MYOCARDIAL INFARCTION
PATIENTS
THALLIUM 201
BETA DECAY RADIOISOTOPES
BODY
CARDIOVASCULAR DISEASES
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSTIC TECHNIQUES
DISEASES
ELECTRON CAPTURE RADIOISOTOPES
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ORGANS
RADIOISOTOPE SCANNING
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SURVEILLANCE
THALLIUM ISOTOPES
550601* - Medicine- Unsealed Radionuclides in Diagnostics