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Image-guided surgery based on MRI is used to guide prostatic biopsy. [7] Image guidance is used to assist surgeons with identifying anatomic landmarks and surgical planes between the prostate and neurovascular bundles during nerve-sparing procedures. [7]
Deep neurovascular bundles, which often include arteries, have a more complicated structure than superficial neurovascular bundles. Since arteries have high intraluminal blood pressure relative to capillaries and veins, these bundles have smooth muscle and connective tissue structures outside the endothelium. This structure allows arteries to ...
MRI, in general, has excellent spatial resolution and can be used for both human and animal studies, making it a valuable tool for studying the neurovascular unit in vivo. It has limited temporal resolution, though, and its ability to visualize finer cellular and molecular details within the neurovascular unit is relatively lower compared to ...
To try and overcome current capacity issues with MRIs for prostate cancer, they have now set up the PRIME trial to explore whether a shorter and cheaper MRI scan could become the new standard of care.
In a 2015 articles in the Journal of Urology, Thompson reported multi-parametric MRI detection of significant prostate cancer had sensitivity of 96%, specificity of 36%, negative predictive value and positive predictive values of 92% and 52%; when PI-RADS was incorporated into a multivariate analysis (PSA, digital rectal exam, prostate volume ...
The prostate is the only male accessory gland that occurs in cetaceans, [68] consisting of diffuse urethral glands [69] surrounded by a very powerful compressor muscle. [70] The prostate gland originates with tissues in the urethral wall.
In people with unilateral pudendal entrapment in the pudendal canal, it is typical to see asymmetric swelling and hyperintensity affecting the pudendal neurovascular bundle. [53] The appearance on MRI may also be normal in pudendal neuralgia. [9] High-frequency ultrasonography may help to locate the site of compression. On the ultrasound ...
Correlation between biopsy and final pathology is improved between MRI-guided biopsy as compared to TRUS. [14] In the fusion MRI-US prostate biopsy, a prostate MRI is performed before biopsy and then, at the time of biopsy, the MRI images are fused to the ultrasound images to guide the urologist to the suspicious targets. Fusion MRI-US biopsies ...