Original Article
Assessment of using 360° endorectal ultrasound and real-time elastography in the diagnosis of benign and malignant rectal neoplasms in elderly patients
Li Chen, Wu Mingxiao, Luo Xiaojie, Jia Wenzhuo, Du Jun, Guo Fajin
Published 2017-12-14
Cite as Chin J Geriatr, 2017,36(12): 1335-1339. DOI: 10.3760/cma.j.issn.0254-9026.2017.12.014
Abstract
ObjectiveTo evaluate the value of endorectal ultrasonography (ERUS) combined with real-time elastography in the diagnosis of benign and malignant rectal neoplasms in elderly patients.
MethodsFifty-six consecutive patients with rectal neoplasms underwent ERUS and real-time tissue elastography at Beijing Hospital from February 2016 to December 2016.The imaging results were compared with results from postoperative or colonoscopic findings.
ResultsHistopathological examinations identified 50 cases of adenocarcinomas, 5 cases of adenomas and 1 case of neurilemmoma.The accuracy, sensitivity and specificity of ERUS in the diagnosis of benign and malignant rectal neoplasms were 89.3% (50/56), 92.0% (46/50), and 66.7% (4/6), respectively.The accuracy, sensitivity and specificity of real-time elastography in the diagnosis of benign and malignant rectal neoplasms were 80.4% (45/56), 82.0% (41/50), and 66.7%(4/6), respectively.However, there was no significant difference in sensitivity and specificity (χ2=3.20 and 0.50, P=0.074 and 0.480) between the two approaches.With the combination of ERUS and real-time elastography in the diagnosis of benign and malignant rectal neoplasms, the sensitivity and specificity were 75.4% and 98.6% for the series method and 88.9% and 44.5% for the parallel method.
ConclusionsAlthough elastography may not improve the accuracy of the diagnosis of benign and malignant rectal neoplasms, the strain information it provides can be used as a basis for subsequent diagnosis and treatment decisions.
Key words:
Rectal neoplasms; Elasticity imaging techniques; Ultrasonography
Contributor Information
Li Chen
Department of Ultrasound, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
Wu Mingxiao
Department of Ultrasound, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
Luo Xiaojie
Department of Radiology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
Jia Wenzhuo
Department of General Surgery, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
Du Jun
Department of Pathology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
Guo Fajin
Department of Ultrasound, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
