Prostate MRI Explorer

ANATOMY WORKSPACE

Teaching case

Axial T2

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Pelvic anatomy

Draft + schematic
Prostate · MRI-derived teaching outlineDrag to rotate · pinch / scroll to zoom
Explore the male pelvis

Browse the axial stack and rotate the model. Choose another acquired plane in the study list.

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Draw closed contours on successive slices. A surface will connect the contours you save.

About this teaching case

Real, de-identified MRI from the TCIA PROSTATE-MRI collection, acquired with a Philips Achieva 3T scanner and an endorectal coil. The full collection contains 26 patients and 182 series.

This viewer preloads one case with its acquired axial, sagittal, and coronal T2 stacks. Slice placement uses DICOM orientation, position, and pixel spacing; the planes are oblique as acquired.

Anatomy models and coverage

The prostate, bladder, paired seminal vesicles, and rectum are draft teaching envelopes based on this MRI. The rectum is an approximate outer envelope around its lumen and the endorectal coil, which distends it; rectal wall layers are not segmented. The bladder and seminal vesicles are cropped superiorly, and only the imaged rectum is shown. Open surface rims mark unclosed scan boundaries.

The paired ejaculatory ducts and all four urethral segments are schematic paths, not segmented lumens. Their diameters are enlarged for visibility. They are shown only in 3D, not as traced boundaries on the MRI. These models are not TCIA expert annotations, tumor outlines, or clinically validated anatomy.

Urethra view: intramural (preprostatic), prostatic, membranous (intermediate), and spongy segments have separate colors. The spongy urethra includes bulbar and penile portions. The distal penile course extends beyond MRI coverage and is an unregistered schematic extension. MRI planes are hidden in this view.

Ureters and vessels: the paired pelvic ureters and selected pelvic arteries and veins are schematic constructions. They are not traced on this T2 MRI and are not angiographic or urographic reconstructions. Their courses extend beyond the acquired field of view. The kidneys, abdominal ureters, aorta and inferior vena cava are not modeled.

Vessel guide: choose arteries or veins, a patient side and a named vessel. Warm hues identify arterial segments and blue hues identify venous channels; names and connected routes provide the primary identification. The selected artery shows its origin chain and immediate branches. The selected vein shows its drainage chain and represented tributaries. Selecting a branch highlights that vessel and its connected route.

The arterial map includes the common, external and internal iliac arteries, the anterior and posterior divisions, patent umbilical segment, superior and inferior vesical arteries, a prostatic branch, middle rectal and internal pudendal arteries. The prostatic branch is shown from the inferior vesical artery as one teaching pattern; actual origins vary. Posterior-division distal branches, obturator and inferior gluteal arteries and small anastomoses are omitted. Venous channels summarize the iliac veins and vesical/prostatic drainage; no full venous plexus is reconstructed. Bilateral geometry is simplified and does not establish this patient's branching pattern.

All draft organ envelopes can be revised with Draw contour. Small schematic paths are fixed teaching aids. The selected structure has its own opacity control, and all models can be toggled independently.

Anatomical references

George Washington University: male reproductive anatomy; University of Minnesota: reproductive ducts; Male urethral segments and terminology.

UAMS: pelvic arteries, origins and branches; UAMS: pelvic venous drainage; Bilhim et al.: variable prostatic arterial origins; Vesical and prostatic venous drainage study; Anatomical validation of internal iliac vessels.

Your files and labels

Open DICOM accepts ZIP archives or individual, single-frame uncompressed monochrome DICOM images. Files are processed in your browser. Compressed and multiframe series require conversion first. Labels and contours are held in this tab; use Export to save a JSON copy and Import labels to restore it for the same series.

Attribution

Choyke P, Turkbey B, Pinto P, Merino M, Wood B. (2016). Data From PROSTATE-MRI. The Cancer Imaging Archive. Dataset DOI. CC BY 3.0. Display data converted from DICOM; teaching contours added.

Clark K, et al. (2013). The Cancer Imaging Archive (TCIA): Maintaining and Operating a Public Information Repository. Journal of Digital Imaging 26:1045–1057. Publication.

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