[The value of dynamic pulmonary perfusion imaging in the diagnosis of hepatopulmonary syndrome (HPS)].
OBJECTIVE
To evaluate the value of 99m-Tc-MAA dynamic pulmonary perfusion imaging in the diagnosis of HPS.


METHODS
3 cases of liver cirrhosis with marked hypoxemia were studied.


RESULTS
The shunt ratios with 100% inspired oxygen were elevated (16%, 27% and 11% respectively). Imaging with gamma camera revealed radioisotope uptake in their lungs, brains and kidneys. Shunt ratios estimated by the quantitative radionuclide method were 43%, 52% and 32% respectively). (control < 7%). The contradictory shunt ratio by using the above method results from dilation of alveolar capilaries. The same examinations were done in 10 cases of healthy controls and other patients.


CONCLUSIONS
The imaging helps diagnosing the HPS as well as estimating the degree of shunting.
Lu
W
W
PUMC Hospital, CAMS and PUMC, Beijing.
Lu
G
G
Zhu
Y
Y
D000328:Adult; D005260:Female; D006801:Humans; D000860:Hypoxia / Q000000981:diagnostic imaging*; D008103:Liver Cirrhosis / Q000000981:diagnostic imaging*; D008168:Lung / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013577:Syndrome; D013668:Technetium Tc 99m Aggregated Albumin
D019275:Radiopharmaceuticals; D013668:Technetium Tc 99m Aggregated Albumin