Abstract |
The accuracy of liver scanning was evaluated in 124
cases with primary or metastatic liver tumors,
including a few benign localized lesions and in 277
cases without such lesions. All findings were
histologically verified by operation or autopsy. 1) Of
the 124 cases with space occupying lesions (SOLs) in
the liver, 92 cases were detected by liver scan
(sensitivity 74.2%). And of the 277 cases without such
lesions, 266 cases were evaluated as no SOLs
(specificity 96.0%). The overall accuracy as 89.3%. 2)
The authors evaluated the liver scan sensitivity in
each of different disease with SOLs. The sensitivity
was 88.9% in primary liver carcinoma, 82.4% in primary
liver carcinoma with cirrhosis, 85.7% in liver abscess,
and 100% in hemangioma. The sensitivity was low in
metastatic tumor (65.8%). 3) The sensitivity of the
SOLs in the right lobe was 53.3% and left lobe 27.7%.
In the interlobar area, detectability was 41.7%. 4) The
authors compared the sensitivity of the liver scan with
the size of the SOLs. The smaller the size of the SOLs,
the lower the detectability. In the pachy lesions, the
sensitivity was 46.6%. |