TY - JOUR
T1 - Use of transrectal ultrasonography for assessment of the size and location of prostatic carcinoma in dogs
AU - Culp, William T.N.
AU - Johnson, Eric G.
AU - Giuffrida, Michelle A.
AU - Palm, Carrie A.
AU - Mayhew, Philipp D.
AU - Kent, Michael S.
AU - Rebhun, Robert B.
AU - Burton, Jenna H.
PY - 2019/11
Y1 - 2019/11
N2 - OBJECTIVE To evaluate the use of transrectal ultrasonography (TRUS) for the assessment of prostatic tumors in dogs and to compare results for TRUS with results for other imaging modalities. ANIMALS 10 client-owned male dogs. PROCEDURES Client-owned dogs identified with prostatic carcinoma were enrolled. Fluoroscopy, transabdominal ultrasonography (TAUS), TRUS, and MRI were performed on all dogs. Tumor measurements, urethral penetration (identification of abnormal tissue within the urethral lumen), and tumor extension into the urinary tract were recorded for all imaging modalities. Agreement between results for MRI (considered the criterion-referenced standard) and results for other modalities were compared. RESULTS Median body weight of the 10 dogs was 26.3 kg (range, 9.4 to 49.5 kg). No complications were encountered during or after TRUS. Significant moderate to good agreements (intraclass correlation coefficients, 0.60 to 0.86) among TAUS, TRUS, fluoroscopy, and MRI were identified for tumor length and height. Assessments of urethral penetration and tumor extension into the bladder with TRUS did not differ significantly from those made with MRI and were superior in terms of absolute agreement with MRI when compared with those for TAUS. CONCLUSIONS AND CLINICAL RELEVANCE TRUS was successfully and safely used to evaluate prostatic carcinoma in dogs. There was moderate to good agreement with MRI results for tumor height and length measurements, and TRUS was found to be superior to TAUS for some assessments. Transrectal ultrasonography can be considered an adjunctive imaging modality for the performance of prostatic inter-ventional procedures or assessment of response to treatment. (Am J Vet Res 2019;80:1012–1019).
AB - OBJECTIVE To evaluate the use of transrectal ultrasonography (TRUS) for the assessment of prostatic tumors in dogs and to compare results for TRUS with results for other imaging modalities. ANIMALS 10 client-owned male dogs. PROCEDURES Client-owned dogs identified with prostatic carcinoma were enrolled. Fluoroscopy, transabdominal ultrasonography (TAUS), TRUS, and MRI were performed on all dogs. Tumor measurements, urethral penetration (identification of abnormal tissue within the urethral lumen), and tumor extension into the urinary tract were recorded for all imaging modalities. Agreement between results for MRI (considered the criterion-referenced standard) and results for other modalities were compared. RESULTS Median body weight of the 10 dogs was 26.3 kg (range, 9.4 to 49.5 kg). No complications were encountered during or after TRUS. Significant moderate to good agreements (intraclass correlation coefficients, 0.60 to 0.86) among TAUS, TRUS, fluoroscopy, and MRI were identified for tumor length and height. Assessments of urethral penetration and tumor extension into the bladder with TRUS did not differ significantly from those made with MRI and were superior in terms of absolute agreement with MRI when compared with those for TAUS. CONCLUSIONS AND CLINICAL RELEVANCE TRUS was successfully and safely used to evaluate prostatic carcinoma in dogs. There was moderate to good agreement with MRI results for tumor height and length measurements, and TRUS was found to be superior to TAUS for some assessments. Transrectal ultrasonography can be considered an adjunctive imaging modality for the performance of prostatic inter-ventional procedures or assessment of response to treatment. (Am J Vet Res 2019;80:1012–1019).
UR - http://www.scopus.com/inward/record.url?scp=85074108250&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074108250&partnerID=8YFLogxK
U2 - 10.2460/ajvr.80.11.1012
DO - 10.2460/ajvr.80.11.1012
M3 - Article
C2 - 31644342
AN - SCOPUS:85074108250
VL - 80
SP - 1012
EP - 1019
JO - American Journal of Veterinary Research
JF - American Journal of Veterinary Research
SN - 0002-9645
IS - 11
ER -