STRAIN ELASTOGRAPHY AS DIAGNOSTIC TOOL FOR EVALUATION OF RECTAL NEOPLASMS
https://doi.org/10.33878/2073-7556-2017-0-4-60-66
Abstract
AIM. To establish cut-off point of strain ratio for rectal adenocarciomas. PATIENTS AND METHODS. Forty-five patients (29 female) at mean age ± SD of 61 ± 9.5 (range, 38-80) years with histologically confirmed rectal neoplasia were included into study. Endorectal Ultrasonography accomplished by strain elastography was performed by Hitachi Hi Vision Preirus (Japan). All patients were treated by Transanal Endoscopic Microsurgery. RESULTS. Pathologic examination of operative specimen revealed 31 adenomas (5 intraepithelial carcinomas) and 14 invasive carcinomas. Cut-off point of Strain Ratio was 5,7 with sensitivity of 0.94 (95 °%CI 0,68-0,99), specificity of 0.92 (95 %oCI 0,74-0,98), positive predictive value of 0,90 (95 % CI 0,84-0,96) and negative predictive value of 0,96 (95 %CI 0,85-0,99). CONCLUSION. Obtained results testified high diagnostic value of strain elastography and made one perspective method for detection of occult malignancy in large rectal adenomas.
About the Authors
Y. A. Shelygin
State Scientific Centre of coloproctology; Russian Medical Academy of Continuous Professional Education
Russian Federation
Russian Federation
L. P. Orlova
State Scientific Centre of coloproctology
Russian Federation
Russian Federation
T. V. Samsonova
State Scientific Centre of coloproctology
Russian Federation
Russian Federation
O. A. Majnovskaja
State Scientific Centre of coloproctology
Russian Federation
Russian Federation
S. V. Chernyshov
State Scientific Centre of coloproctology
Russian Federation
Russian Federation
E. M. Abashina
State Scientific Centre of coloproctology
Russian Federation
Russian Federation
P. G. Evgrafov
State Scientific Centre of coloproctology
Russian Federation
Russian Federation
E. G. Rybakov
State Scientific Centre of coloproctology
Russian Federation
Russian Federation
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Review
For citations:
Shelygin Y.A., Orlova L.P., Samsonova T.V., Majnovskaja O.A., Chernyshov S.V., Abashina E.M., Evgrafov P.G., Rybakov E.G. STRAIN ELASTOGRAPHY AS DIAGNOSTIC TOOL FOR EVALUATION OF RECTAL NEOPLASMS. Koloproktologia. 2017;(4):60-66. (In Russ.) https://doi.org/10.33878/2073-7556-2017-0-4-60-66
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