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Advantages of magnetic resonance imaging (MRI) of the seminal vesicles and intra-abdominal vas deferens in patients with congenital absence of the vas deferens.
Urology. 2013 Aug; 82(2):345-51.U

Abstract

OBJECTIVE

To show the flexibility in magnetic resonance imaging (MRI) of seminal vesicle (SV) and intra-abdominal segment of vas deferens for the patients with congenital absence of the vas deferens (CAVD), including congenital bilateral absence of the vas deferens (CBAVD) and congenital unilateral absence of vas deferens (CUAVD).

METHODS

Fourteen consecutive patients with CAVD had transrectal ultrasonography (TRUS) and further MRI evaluations. TRUS was performed using a 7.5-MHz transducer, and images of the SVs were obtained, calculated in the transaxial plane. MRI studies were performed with a 1.5-7 superconducting system, T1- and T2-weighted axial, coronal, and sagittal imaging of the pelvis was obtained. If the SVs were present, then their size was measured for the morphologic classification and diagnosis. All of the patients also received cystic fibrosis transmembrane conductance regulator (CFTR) gene mutation testing.

RESULTS

In a series of 12 men with CBAVD, only 4 were found to have bilateral SV agenesis using MRI. The remaining 8 men with unilateral hypoplasia still had SV remnants. MRI also detected the intra-abdominal segment of the vas deferens. Through our study of MRI, SV agenesis is not well associated with the presence of CFTR mutation in patients with CAVD.

CONCLUSION

MRI provides a precise imaginal diagnosis of SV defect, which is superior to the TRUS examination for the patients with CAVD. Compared with the previous inaccurate examination method of TRUS, this study demonstrates that MRI can provide better images for the patients with CAVD for the clinical diagnosis of existing defects of internal seminal tract and internal organs.

Authors+Show Affiliations

Graduate Institute of Basic Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan. 053824@mail.fju.edu.twNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23768522

Citation

Chiang, Han-Sun, et al. "Advantages of Magnetic Resonance Imaging (MRI) of the Seminal Vesicles and Intra-abdominal Vas Deferens in Patients With Congenital Absence of the Vas Deferens." Urology, vol. 82, no. 2, 2013, pp. 345-51.
Chiang HS, Lin YH, Wu YN, et al. Advantages of magnetic resonance imaging (MRI) of the seminal vesicles and intra-abdominal vas deferens in patients with congenital absence of the vas deferens. Urology. 2013;82(2):345-51.
Chiang, H. S., Lin, Y. H., Wu, Y. N., Wu, C. C., Liu, M. C., & Lin, C. M. (2013). Advantages of magnetic resonance imaging (MRI) of the seminal vesicles and intra-abdominal vas deferens in patients with congenital absence of the vas deferens. Urology, 82(2), 345-51. https://doi.org/10.1016/j.urology.2013.03.038
Chiang HS, et al. Advantages of Magnetic Resonance Imaging (MRI) of the Seminal Vesicles and Intra-abdominal Vas Deferens in Patients With Congenital Absence of the Vas Deferens. Urology. 2013;82(2):345-51. PubMed PMID: 23768522.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Advantages of magnetic resonance imaging (MRI) of the seminal vesicles and intra-abdominal vas deferens in patients with congenital absence of the vas deferens. AU - Chiang,Han-Sun, AU - Lin,Yi-Hsiang, AU - Wu,Yi-No, AU - Wu,Chien-Chih, AU - Liu,Ming-Che, AU - Lin,Chih-Ming, Y1 - 2013/06/13/ PY - 2012/09/11/received PY - 2013/03/08/revised PY - 2013/03/21/accepted PY - 2013/6/18/entrez PY - 2013/6/19/pubmed PY - 2013/11/7/medline SP - 345 EP - 51 JF - Urology JO - Urology VL - 82 IS - 2 N2 - OBJECTIVE: To show the flexibility in magnetic resonance imaging (MRI) of seminal vesicle (SV) and intra-abdominal segment of vas deferens for the patients with congenital absence of the vas deferens (CAVD), including congenital bilateral absence of the vas deferens (CBAVD) and congenital unilateral absence of vas deferens (CUAVD). METHODS: Fourteen consecutive patients with CAVD had transrectal ultrasonography (TRUS) and further MRI evaluations. TRUS was performed using a 7.5-MHz transducer, and images of the SVs were obtained, calculated in the transaxial plane. MRI studies were performed with a 1.5-7 superconducting system, T1- and T2-weighted axial, coronal, and sagittal imaging of the pelvis was obtained. If the SVs were present, then their size was measured for the morphologic classification and diagnosis. All of the patients also received cystic fibrosis transmembrane conductance regulator (CFTR) gene mutation testing. RESULTS: In a series of 12 men with CBAVD, only 4 were found to have bilateral SV agenesis using MRI. The remaining 8 men with unilateral hypoplasia still had SV remnants. MRI also detected the intra-abdominal segment of the vas deferens. Through our study of MRI, SV agenesis is not well associated with the presence of CFTR mutation in patients with CAVD. CONCLUSION: MRI provides a precise imaginal diagnosis of SV defect, which is superior to the TRUS examination for the patients with CAVD. Compared with the previous inaccurate examination method of TRUS, this study demonstrates that MRI can provide better images for the patients with CAVD for the clinical diagnosis of existing defects of internal seminal tract and internal organs. SN - 1527-9995 UR - https://www.unboundmedicine.com/medline/citation/23768522/Advantages_of_magnetic_resonance_imaging__MRI__of_the_seminal_vesicles_and_intra_abdominal_vas_deferens_in_patients_with_congenital_absence_of_the_vas_deferens_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0090-4295(13)00411-1 DB - PRIME DP - Unbound Medicine ER -