The Korean Journal of Nuclear Medicine (대한핵의학회지)

The Korean Society of Nuclear Medicine (대한핵의학회)
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Usefulness of Labeled RBC-SPECT Scanning in the Diagnosis of Hepatic Hemangiomas

간혈관종 진단에 있어서의 표지 적혈구 SPECT 스캔의 유용성

  • Kim, Hyeon-Sook (Department of Radiology, Catholic University Medical College) ;
  • Yang, Woo-Jin (Department of Radiology, Catholic University Medical College) ;
  • Lee, Myung-Hee (Department of Radiology, Catholic University Medical College) ;
  • Chung, Soo-Kyo (Department of Radiology, Catholic University Medical College) ;
  • Shinn, Kyung-Sub (Department of Radiology, Catholic University Medical College) ;
  • Bahk, Yong-Whee (Department of Radiology, Catholic University Medical College)
  • 김현숙 (가톨릭대학 의학부 방사선과학교실) ;
  • 양우진 (가톨릭대학 의학부 방사선과학교실) ;
  • 이명희 (가톨릭대학 의학부 방사선과학교실) ;
  • 정수교 (가톨릭대학 의학부 방사선과학교실) ;
  • 신경섭 (가톨릭대학 의학부 방사선과학교실) ;
  • 박용휘 (가톨릭대학 의학부 방사선과학교실)
  • Published : 1991.05.31
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Abstract

The usefulness of $^{99m}Tc-labeled$ RBC single photon emission CT (SPECT) scanning in the diagnosis of hepatic heminagiomas was evaluated in 22 patients with various focal hepatic lesions including 15 cases of hemangiomas, 3 cases each of hepatomas and metastasis and 1 case of abscess. The diagnoses were based on ultrasonography and/or CT scanning, clinical stability of lesion for at least 6 months or surgical exploration. Seven cases of 15 hemangiomas were detected by delayed planar RBC scanning, whereas 4 cases were detected by delayed RBC-SPECT scanning. The smallest hemangioma shown by delayed RBC-SPECT scanning was 1.0 cm in diameter. compared with 2.2 cm by planar RBC scanning. One small hemangioma (2.0 cm) located adjacent to the heart was not found by either method. The sensitivities in detecting the hemangioma according to the site by planar imaging were 16.6% $(1.0\sim1.9cm)$, 66.7% $(2.0\sim2.9cm)$ and 83.3% (more than 3.0 cm) and by SPECT were 50.0%, 66.7% and 100%, respectively. Seven cases of non-hemangiomatous lesions did not show any significant increase in activity in the delayed blood pool images. It is concluded that $^{99m}Tc-RBC$ blood-pool SPECT scanning is clearly more sensitive in detecting small hemangioma than planar scanning and is, therefore, a choice of method for the detection of hepatic hemangioma.

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