title: Simple diagrammatic method to delineate male urethra in prostate cancer radiotherapy: an MRI based approach.
abstract: Stereotactic body radiotherapy (SBRT) is being increasingly utilized in the treatment of prostate cancer. With the advent of high-precision radiosurgery systems, it is possible to obtain dose distributions akin to high-dose rate brachytherapy with SBRT. However, urethral toxicity has a significant impact on the quality of life in patients with prostate cancer. Contouring the male urethra on a CT scan is difficult in the absence of an indwelling catheter. In this pictorial essay, we have used the MRI obtained for radiotherapy planning to aid in the delineation of the male urethra and have attempted to define guidelines for the same.
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Tejinder
authors.initials: T
authors.lastname: Kataria
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Deepak
authors.initials: D
authors.lastname: Gupta
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Shikha
authors.initials: S
authors.lastname: Goyal
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Shyam S
authors.initials: SS
authors.lastname: Bisht
authors.affiliation: 2 Division of Radiology, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Ravi
authors.initials: R
authors.lastname: Chaudhary
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Kushal
authors.initials: K
authors.lastname: Narang
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Susovan
authors.initials: S
authors.lastname: Banerjee
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Trinanjan
authors.initials: T
authors.lastname: Basu
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Ashu
authors.initials: A
authors.lastname: Abhishek
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Sasikumar
authors.initials: S
authors.lastname: Sambasivam
authors.affiliation: 1 Division of Radiation Oncology, Medanta Cancer Institute, Medanta-The Medicity, Gurgaon, Haryana, India.
authors.forename: Nisha T
authors.initials: NT
authors.lastname: Vishnu
mesh_terms: D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D058958:Organs at Risk / Q000000981:diagnostic imaging*; D011471:Prostatic Neoplasms / Q000532:radiotherapy*; D016634:Radiosurgery; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D014521:Urethra / Q000000981:diagnostic imaging* / Q000528:radiation effects