[Scintigraphic assessment of patients with pulmonary thromboembolism by extent of perfusion defect and right ventricular function].
In 36 cases, severity of pulmonary thromboembolism (PTE) were determined with extent of perfusion defect (%PD) from pulmonary perfusion scintigraphy combined right ventricular ejection fraction (RVEF) from radionuclide angiocardiography. In 27 cases, follow-up scintigraphy was also done. After medical therapy, delta PD (= initial %PD-follow up %PD) was significant improved in patients with normal RVEF (greater than 38%) (19.40 +/- 15.58%: n = 15) than that in those with reduced RVEF (less than or equal to 38%) (0.00 +/- 3.9%). In follow-up studies, patients with larger %PD (greater than or equal to 40) showed poor prognosis than those with moderate or less %PD (less than 40). In conclusion, these both non-invasive indicators were proved to be useful for the evaluation not only the clinical severity but the prognosis of pulmonary thromboembolism.
Kumita
S
S
Nishimura
T
T
Hayashida
K
K
Uehara
T
T
Mitani
I
I
Okizuka
H
H
D005260:Female; D015637:Gated Blood-Pool Imaging; D006321:Heart / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011652:Pulmonary Circulation; D011655:Pulmonary Embolism / Q000000981:diagnostic imaging* / Q000503:physiopathology; D013318:Stroke Volume