• Nucl Med Commun · Jul 2013

    Correlation between morphological and functional liver volume in each sector using integrated SPECT/CT imaging by computed tomography and technetium-99m galactosyl serum albumin scintigraphy in patients with various diseases who had undergone hepatectomy.

    • Atsushi Nanashima, Takafumi Abo, Syuuichi Tobinaga, Goushi Murakami, Yasuo Kido, Tooru Fukuda, Tomoshi Tsuchiya, Hirofumi Matsumoto, Takeshi Nagayasu, and Takashi Kudo.
    • Department of Surgery, Division of Surgical Oncology, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1 Sakamoto, Nagasaki, Japan. a-nanasm@nagasaki-u.ac.jp
    • Nucl Med Commun. 2013 Jul 1; 34 (7): 652-9.

    ObjectivesThe aim of the study was to accurately examine the functional volume (RI-vol) of the hepatic segments on single photon emission computed tomography/computed tomography (CT) fusion imaging by technetium-99m galactosyl human serum albumin scintigraphy and compare it with the RI-vol and morphological volume obtained on computed tomography (CT-vol).MethodsIn 60 patients with various liver background statuses who had undergone hepatectomy, the RI-vol and CT-vol were examined in each sector using imaging analysis. The values from a control group (n=91) were used as reference data.ResultsThe mean RI-vol and CT-vol of the right liver were 64 ± 10 and 63 ± 6%, respectively, whereas the values for the left liver were 36 ± 10 and 37 ± 6%, respectively. Compared with the control group, the ratios in each hemiliver were similar. The mean RI-vol and CT-vol for each sector were also similar, and significant positive correlations were identified between the two volumes (P<0.01). In four patients with hepatic tumors involving the main hepatic vessels or the bile duct and in 10 patients who had undergone portal vein embolization, the actual RI-vol in the injured sector was significantly decreased compared with CT-vol (P<0.05). There were marked changes in functional volume in segment 6+7 and segment 2+3 after portal vein embolization (P<0.05).ConclusionVolumetric measurement using single photon emission computed tomography/CT imaging with technetium-99m galactosyl human serum albumin scintigraphy is useful for evaluating the functional volume in separated livers and offers a good reflection of the background liver status.

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