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A novel utility of 99mTc-GSA SPECT/CT fusion imaging: detection of inadequate portal vein embolization

Authors
  • Sumiyoshi, Tatsuaki1
  • Shima, Yasuo1
  • Okabayashi, Takehiro1
  • Hata, Yasuhiro2
  • Noda, Yoshihiro2
  • Kouno, Michihiko2
  • Saisaka, Yuichi1
  • Sui, Kenta1
  • Morita, Sojiro2
  • Negoro, Yuji3
  • Sueda, Taijiro4
  • 1 Kochi Health Sciences Center, Department of Gastroenterological Surgery, 2125 Ike, Kochi, Japan , Kochi (Japan)
  • 2 Kochi Health Sciences Center, Department of Radiology, Kochi, Japan , Kochi (Japan)
  • 3 Kochi Health Sciences Center, Department of Medical Oncology, Kochi, Japan , Kochi (Japan)
  • 4 Hiroshima University, Department of Surgery, Applied Life Sciences Institute of Biomedical and Health Sciences, Hiroshima, Japan , Hiroshima (Japan)
Type
Published Article
Journal
Japanese Journal of Radiology
Publisher
Springer Japan
Publication Date
Oct 16, 2017
Volume
35
Issue
12
Pages
748–754
Identifiers
DOI: 10.1007/s11604-017-0689-9
Source
Springer Nature
Keywords
License
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Abstract

PurposeOur aim was to determine the utility of Tc-99m-diethylenetriaminepentaacetic acid-galactosyl human serum albumin single-photon-emission computed tomography (99mTc-GSA SPECT/CT) fusion imaging for detecting incomplete portal vein embolization (PVE).Materials and methodsFifty-five candidates underwent PVE. Among them, five underwent second PVE. Detectability of first inadequate PVE using CT and 99mTc-GSA SPECT/CT fusion imaging was analyzed.ResultsCases of inadequate PVE were detected in three patients using CT and in five using 99mTc-GSA SPECT/CT fusion imaging. Fusion imaging detected two cases of insufficient PVE in which portal branches were apparently well embolized on CT. Median value for volumetric rate in the embolized liver was 63.3% after the first PVE and 54.7% after the second (P < 0.01). Median functional rate value in embolized liver was 60.1% after the first PVE and 49.4% after the second (P < 0.01). Median value for change of volumetric and functional rates in embolized liver after the second PVE was 7.1 and 10.3%, respectively, and change of functional rate was greater than that of volumetric rate (P < 0.01).Conclusions99mTc-GSA SPECT/CT fusion imaging was useful for detecting inadequate PVE, and second PVE was effective for increasing volumetric and functional rates.

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