Magnetic resonance imaging for detection of non palpable undescended testes: Diagnostic accuracy of diffusion-weighted MRI in comparison with laparoscopic findings
Purpose: The purpose of this study is to assess the value of adding diffusion-weighted sequences (DW) to routine magnetic resonance imaging (MRI) in identifying and locating nonpalpable undescended testes. Materials and methods: This prospective study included 51 patients with age ranges from 2 to 1...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2015-03-01
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| Series: | The Egyptian Journal of Radiology and Nuclear Medicine |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378603X14001958 |
| _version_ | 1819147329193639936 |
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| author | Ehab Ali Abd-ElGawad Enas A. Abdel-Gawad Mostafa Magdi Samir M.M. Al-Minshawy |
| author_facet | Ehab Ali Abd-ElGawad Enas A. Abdel-Gawad Mostafa Magdi Samir M.M. Al-Minshawy |
| author_sort | Ehab Ali Abd-ElGawad |
| collection | DOAJ |
| description | Purpose: The purpose of this study is to assess the value of adding diffusion-weighted sequences (DW) to routine magnetic resonance imaging (MRI) in identifying and locating nonpalpable undescended testes.
Materials and methods: This prospective study included 51 patients with age ranges from 2 to 15 years presenting with non-palpable undescended testes. MRI was done using1.5 MRI machine. MRI examination included axial and coronal spin-echo T1-weighted sequence, axial and coronal fat suppressed spin-echo T2-weighted sequence and axial DWI. Images were interpreted for the presence or absence and the location of the undescended testes. Testes were recognized by their elliptical shape and hyperintensity. Testes were classified into three anatomic regions: intracanalicular, low intra-abdominal, and high intra-abdominal. Laparoscopy was used as a gold standard.
Results: Conventional MRI showed a sensitivity, specificity and accuracy of 87.23%, 50% and 83% respectively. DW MRI showed a sensitivity, specificity and accuracy of 91.5%, 66.7% and 88.6% respectively. The combined usage of conventional and DW MRI yielded a sensitivity, specificity and accuracy of 95.8%, 100% and 96.2%.
Conclusion: DWI especially performed at a high b value improves detection of undescended testes. |
| first_indexed | 2024-12-22T13:28:05Z |
| format | Article |
| id | doaj.art-370092e3f86f43c2a0173d216972d6c4 |
| institution | Directory Open Access Journal |
| issn | 0378-603X |
| language | English |
| last_indexed | 2024-12-22T13:28:05Z |
| publishDate | 2015-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | The Egyptian Journal of Radiology and Nuclear Medicine |
| spelling | doaj.art-370092e3f86f43c2a0173d216972d6c42022-12-21T18:24:14ZengSpringerOpenThe Egyptian Journal of Radiology and Nuclear Medicine0378-603X2015-03-0146120521010.1016/j.ejrnm.2014.10.005Magnetic resonance imaging for detection of non palpable undescended testes: Diagnostic accuracy of diffusion-weighted MRI in comparison with laparoscopic findingsEhab Ali Abd-ElGawad0Enas A. Abdel-Gawad1Mostafa Magdi2Samir M.M. Al-Minshawy3Department of Radiology, Minia University, EgyptDepartment of Radiology, Minia University, EgyptDepartment of Urology, Minia University, EgyptDepartment of Pediatrics, Minia University, EgyptPurpose: The purpose of this study is to assess the value of adding diffusion-weighted sequences (DW) to routine magnetic resonance imaging (MRI) in identifying and locating nonpalpable undescended testes. Materials and methods: This prospective study included 51 patients with age ranges from 2 to 15 years presenting with non-palpable undescended testes. MRI was done using1.5 MRI machine. MRI examination included axial and coronal spin-echo T1-weighted sequence, axial and coronal fat suppressed spin-echo T2-weighted sequence and axial DWI. Images were interpreted for the presence or absence and the location of the undescended testes. Testes were recognized by their elliptical shape and hyperintensity. Testes were classified into three anatomic regions: intracanalicular, low intra-abdominal, and high intra-abdominal. Laparoscopy was used as a gold standard. Results: Conventional MRI showed a sensitivity, specificity and accuracy of 87.23%, 50% and 83% respectively. DW MRI showed a sensitivity, specificity and accuracy of 91.5%, 66.7% and 88.6% respectively. The combined usage of conventional and DW MRI yielded a sensitivity, specificity and accuracy of 95.8%, 100% and 96.2%. Conclusion: DWI especially performed at a high b value improves detection of undescended testes.http://www.sciencedirect.com/science/article/pii/S0378603X14001958Undescended testesMRIDiffusion |
| spellingShingle | Ehab Ali Abd-ElGawad Enas A. Abdel-Gawad Mostafa Magdi Samir M.M. Al-Minshawy Magnetic resonance imaging for detection of non palpable undescended testes: Diagnostic accuracy of diffusion-weighted MRI in comparison with laparoscopic findings The Egyptian Journal of Radiology and Nuclear Medicine Undescended testes MRI Diffusion |
| title | Magnetic resonance imaging for detection of non palpable undescended testes: Diagnostic accuracy of diffusion-weighted MRI in comparison with laparoscopic findings |
| title_full | Magnetic resonance imaging for detection of non palpable undescended testes: Diagnostic accuracy of diffusion-weighted MRI in comparison with laparoscopic findings |
| title_fullStr | Magnetic resonance imaging for detection of non palpable undescended testes: Diagnostic accuracy of diffusion-weighted MRI in comparison with laparoscopic findings |
| title_full_unstemmed | Magnetic resonance imaging for detection of non palpable undescended testes: Diagnostic accuracy of diffusion-weighted MRI in comparison with laparoscopic findings |
| title_short | Magnetic resonance imaging for detection of non palpable undescended testes: Diagnostic accuracy of diffusion-weighted MRI in comparison with laparoscopic findings |
| title_sort | magnetic resonance imaging for detection of non palpable undescended testes diagnostic accuracy of diffusion weighted mri in comparison with laparoscopic findings |
| topic | Undescended testes MRI Diffusion |
| url | http://www.sciencedirect.com/science/article/pii/S0378603X14001958 |
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