Prostate cancer MRI: Difference between revisions
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==Overview== | ==Overview== | ||
MRI-guided prostate biopsy is also being used, particularly in those cases where TRUS biopsy is negative but clinical and PSA suspicion remains high. Following radical prostatectomy, patients with elevated PSA should also be examined using MRI | MRI may be helpful in the diagnosis of prostate cancer. MRI-guided prostate biopsy is also being used, particularly in those cases where TRUS biopsy is negative but clinical and [[PSA]] suspicion remains high. Following radical prostatectomy, patients with elevated [[PSA]] should also be examined using [[MRI]]. On [[MRI scan]], T1 image is useful for detection of prostate contour, neurovascular bundle encasement, and post-biopsy hemorrhage. T2-weighted images prostate cancer usually appears as a region of low signal within a normally high signal peripheral zone | ||
==MRI== | ==MRI== | ||
Pelvic MRI may be helpful in the diagnosis of prostate cancer. Findings on MRI suggestive of prostate cancer include:<ref name=radio> Prostatic carcinoma.Dr Ian Bickle and Dr Saqba Farooq et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/prostatic-carcinoma-1</ref> | Pelvic [[MRI]] may be helpful in the diagnosis of prostate cancer. Findings on [[MRI]] suggestive of prostate cancer include:<ref name="radio"> Prostatic carcinoma.Dr Ian Bickle and Dr Saqba Farooq et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/prostatic-carcinoma-1</ref><ref name="pmid26166962">{{cite journal |vauthors=Ghai S, Haider MA |title=Multiparametric-MRI in diagnosis of prostate cancer |journal=Indian J Urol |volume=31 |issue=3 |pages=194–201 |date=2015 |pmid=26166962 |pmc=4495493 |doi=10.4103/0970-1591.159606 |url=}}</ref> | ||
* ''' | *'''T1''' | ||
:*Useful for detection of prostate contour, neurovascular bundle encasement, and post-biopsy hemorrhage | |||
:* | |||
*'''T2''' | |||
:*Using a endorectal coil, on T2-weighted images prostate cancer usually appears as a region of low signal within a normally high signal peripheral zone | |||
:*Most significant [[cancers]] occur along the posterior portion of the [[gland]] abutting the [[rectum]] | |||
*'''DWI''' | |||
:*Often shows restricted diffusion | |||
*'''Dynamic contrast enhancement (DCE)''' | |||
:*Shows enhancement - but it can be difficult to distinguish from [[prostatitis]] or [[benign prostatic hyperplasia]] (especially in the central zone lesions) | |||
:*More specific than T2 signal | |||
[[File:T3-prostate-cancer-mri.jpg|300px|thumb|left|MRI showing prostate cancer [https://radiopaedia.org/articles/prostate-cancer-summary?lang=us source:Case courtesy of Dr Roberto Schubert, Radiopaedia.org, rID: 18507]]] | |||
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[[File:Prostate-cancer-mri-and-mr-spectroscopy-1.jpg|300px|thumb|left|MRI scan showing prostate cancer [https://radiopaedia.org/cases/prostate-cancer-mri-and-mr-spectroscopy-1?lang=us source:Case courtesy of Dr Paresh K Desai , Radiopaedia.org, rID: 6650]]] | [[File:Prostate-cancer-mri-and-mr-spectroscopy-1.jpg|300px|thumb|left|MRI scan showing prostate cancer [https://radiopaedia.org/cases/prostate-cancer-mri-and-mr-spectroscopy-1?lang=us source:Case courtesy of Dr Paresh K Desai , Radiopaedia.org, rID: 6650]]] | ||
[[File:Prostate-cancer-multiparametric-imaging-on-3-t-mri.jpg|300px|thumb|left|MRI scan showing prostate cancer [https://radiopaedia.org/cases/prostate-cancer-multiparametric-imaging-on-3-t-mri?lang=us source:Case courtesy of Dr Chris O'Donnell, Radiopaedia.org, rID: 19238]]] | [[File:Prostate-cancer-multiparametric-imaging-on-3-t-mri.jpg|300px|thumb|left|MRI scan showing prostate cancer [https://radiopaedia.org/cases/prostate-cancer-multiparametric-imaging-on-3-t-mri?lang=us source:Case courtesy of Dr Chris O'Donnell, Radiopaedia.org, rID: 19238]]] | ||
Latest revision as of 15:44, 13 January 2021
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Prostate cancer MRI On the Web |
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American Roentgen Ray Society Images of Prostate cancer MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Syed Musadiq Ali M.B.B.S.[2]
Overview
MRI may be helpful in the diagnosis of prostate cancer. MRI-guided prostate biopsy is also being used, particularly in those cases where TRUS biopsy is negative but clinical and PSA suspicion remains high. Following radical prostatectomy, patients with elevated PSA should also be examined using MRI. On MRI scan, T1 image is useful for detection of prostate contour, neurovascular bundle encasement, and post-biopsy hemorrhage. T2-weighted images prostate cancer usually appears as a region of low signal within a normally high signal peripheral zone
MRI
Pelvic MRI may be helpful in the diagnosis of prostate cancer. Findings on MRI suggestive of prostate cancer include:[1][2]
- T1
- Useful for detection of prostate contour, neurovascular bundle encasement, and post-biopsy hemorrhage
- T2
- DWI
- Often shows restricted diffusion
- Dynamic contrast enhancement (DCE)
- Shows enhancement - but it can be difficult to distinguish from prostatitis or benign prostatic hyperplasia (especially in the central zone lesions)
- More specific than T2 signal
References
- ↑ Prostatic carcinoma.Dr Ian Bickle and Dr Saqba Farooq et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/prostatic-carcinoma-1
- ↑ Ghai S, Haider MA (2015). "Multiparametric-MRI in diagnosis of prostate cancer". Indian J Urol. 31 (3): 194–201. doi:10.4103/0970-1591.159606. PMC 4495493. PMID 26166962.