[A new method to obtain right-to-left shunt index of the lung using 99mTc-MAA pulmonary perfusion scintigraphy and first-pass dynamic data acquisition].
Generally a right-to-left shunt index in pulmonary area was calculated from total body and pulmonary area by scintillations count using 9mTc-MAA pulmonary perfusion scintigraphy. In this study, we devised a newly calculation method for right-to-left shunt index in pulmonary area from 9mTc-MAA pulmonary perfusion scintigraphy by first-pass dynamic data. We compared the proposed method with the conventional method in 26 patients (9 men and 17 women; 3-26 years old): 23 patients with congenital biliary atresia (CBA) post operation and the other 3 patients with right-to-left shunt from hepatopulmonary syndrome. As a result, there was a positive correlation of the index values between the proposed method and the conventional method (r = 0.929). Thus, the present method should be clinically useful.
Ohtaki
Hiroo
H
Department of Medical Technology, Niigata University Medical & Dental Hospital.
Hatano
Masayoshi
M
Yamazaki
Yoshihiro
Y
Yoshimura
Norihiko
N
Hori
Yoshiro
Y
Odano
Ikuo
I
D000293:Adolescent; D000328:Adult; D001656:Biliary Atresia / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D005260:Female; D020065:Hepatopulmonary Syndrome / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D011652:Pulmonary Circulation; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013668:Technetium Tc 99m Aggregated Albumin
D019275:Radiopharmaceuticals; D013668:Technetium Tc 99m Aggregated Albumin