6 Modern Imaging in Brachytherapy

Modern Imaging 141

E: Dose distribution indicating different isodoses encompassing the PTV. Fig 5.12: MRI guided interstitial brachytherapy application in pelvic malignancies (recurrent or extensive gynaecologic cancer, recurrent or R2-resection in T4-rectal cancer). The procedure is performed at an open MRI unit (Magnetom Open Viva, Siemens), partly directly guided by imaging with a touch screen for on line view (A), partly directly linked to the MRI unit in the same room (B). The operating table with the patient can be directly advanced under the MRI unit, without significantly changing the patient’s position. All tools for the procedure have to be MRI compatible.

A

B