Color Doppler‐enhanced Endoscopic Ultrasonographic Diagnosis of Upper Gastrointestinal Submucosal Lesions

Autor: Hiroaki Iwase, Takeo Yamaguchp, Shoji Suga, Kazuo Kusugamp, Kazuhiro Kyokane
Rok vydání: 1997
Předmět:
Zdroj: Digestive Endoscopy. 9:116-121
ISSN: 1443-1661
0915-5635
Popis: We investigated the usefulness of color Doppler-enhanced endoscopic ultrasonography for the assessment of upper gastrointentinal tract submucosal lesions. The subjects were 61 patients with endoscopically detected lesions : five extraluminal, four solitary varices, 26 leiomyomas, seven leiomyosarcomas, five aberrant pancreata, five cysts, three granular cell tumors, three lipomas, two schwannomas and one fibroma. Lesions were confirmed by surgery, biopsy or angiography, as appropriate. The ultrasonographic appearance of the lesions and their locations within the five-layered structure of the wall are described. For leiomyomatous tumors less than 5 cm including leiomysarcoma, the presence of turbulent, pulsatile flow, as demonstrated on fast Fourier transform analysis, was associated with a sensitivity of 100% (7/7) and a specificity of 77.8% (7/9). We speculate that the flow pattern is related to abnormal vessels in the malignant tumors. Evaluation of the ultrasonographic characteristics of leiomyomatous tumors utilizing the pulsatile wave pattern may allow the diagnosis of leiomyosarcoma. Color Doppler-enhanced endoscopic ultrasonography is potentially useful in the preoperative diagnosis of submucosal lesions involving the upper gastrointestinal tract.
Databáze: OpenAIRE
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