What is a staging MRI?
Staging tells the doctor how big a cancer is and whether it has spread. Knowing the stage helps your doctor decide which treatment you need. You might have an MRI scan if: there are cancer cells in the lymph nodes under your arm (axilla) you have a larger breast cancer, for example bigger than 5 cm.
What is the clinical importance of Denonvilliers fascia?
The Denonvilliers’ fascia (DVF) plays an important role in rectal surgery because of its anatomic position and its relationship to the surrounding organs. It affects the surgical plane anterior to the rectum in the procedure of total mesorectal excision (TME).
Is Denonvilliers fascia present in females?
The original description of the fascia was based exclusively on findings observed in 12 male cadavers, although Denonvilliers gave no account of its existence in women.
What is Craniocaudal length of tumor?
On 3D-comparison by the radiation oncologist and the resident radiation oncology, craniocaudal tumour extension was found to be on average 20 mm (range 0–44, SD 11 mm).
What is the anatomy of the mesorectal fascia?
Visceral mesorectal fascia (long solid arrow) is lying anterior to presacral fascia (short solid arrow). High signal deep relative to presacral fascia (arrowhead) represents fat, and signal void of median sacral vessel (open arrow) lies in retrorectal space.
How is the mesorectum shown on an MRI?
The mesorectum is shown on axial MRIs of the cadaveric sections as a high-signal-intensity (similar to the signal intensity of fat) package surrounding the rectum, containing vessels and lymphatic tissue (Fig. 15A, 15B ). Lymph nodes within the mesorectum are shown as high-signal-intensity ovoid structures.
What type of MRI is used for mesorectal excision surgery?
SUBJECTS AND METHODS. High-spatial-resolution T2-weighted MRI was performed using a 1.5-T system in cadaveric sections and in patients before they underwent total mesorectal excision surgery.
Which structures are important in total mesorectal excision surgery?
High-spatial-resolution MRI depicted a number of structures of importance in total mesorectal excision surgery. The mesorectal fascia, which forms the boundary of the surgical excision plane in total mesorectal excision, was identified, and the presacral fascia, peritoneal reflection, and Denonvilliers’ fascia were also shown.