Differentiation of soft tissue haemangioma by 201Tl scintigraphy

Autor: Junichi Taki, Seigo Kinuya, Masanobu Namura, Takahiro Higuchi, Norihisa Tonami, Akitaka Nonomura, Hisashi Bunko, Hiroyuki Tsuchiya, Kenichi Nakajima
Rok vydání: 2003
Předmět:
Zdroj: Nuclear Medicine Communications. 24:327-330
ISSN: 0143-3636
DOI: 10.1097/00006231-200303000-00014
Popis: Radiological diagnosis of deep soft tissue is often difficult. In the present study, thallium-201 ( Tl) uptake into haemangiomas and deep malignant soft tissue tumours was investigated in order to assess its clinical utility. Tl scintigraphy was reviewed in four patients presenting with soft tissue haemangiomas. Early and delayed planar images, obtained at 15 min and 3 h following the intravenous injection of Tl (111 MBq), were examined. The Tl uptake ratio was calculated by dividing the count density of the tumour region of interest (ROI) by that of the background ROI. Results were compared with those of five cases of rhabdomyosarcoma and a single instance of angiosarcoma. All haemangioma lesions demonstrated increased Tl uptake in early images. However, Tl uptake in delayed images was markedly decreased. No significant differences were observed in the early uptake ratio between haemangiomas (1.60-2.72) and reference malignant tumours (1.48-2.45); however, the difference was significant in delayed images (range, 1.01-1.26 vs. 1.43-2.03, respectively) ( P
Databáze: OpenAIRE