The role of external beam radiation therapy (EBRT) in the management of upper gastrointestinal malignancies is constantly evolving. As radiation therapy techniques improve and are able to deliver more ablative doses of radiotherapy while sparing healthy tissue, radiation can be applied to a wider range of clinical scenarios. Stereotactic body radiation therapy (SBRT) allows a high dose of radia...

Radiation is becoming widely available to treat tumors in veterinary patients. Orthovoltage machines capable of delivering low energy external beam radiation are less versatile than linear accelerators and cobalt-60 machines that deliver megavoltage radiation. In addition, electron beam capabilities that are available with some linear accelerators allow more targeted treatment in our smaller pa...

Percent cancer volume, percentage of positive biopsy cores, dominant intraprostatic lesion, prostatic neoplasms/pathology, external beam radiation therapy.

Introduction: Theranostics, in particular, the use of radionuclides with the capability of simultaneous imaging and treatment has opened new horizons in personalized treatment planning of targeted radiation therapy. In this approach, positive beta or gamma emitters are required for imaging and alpha, beta and Auger electrons for treatment purpose. On the other hand, studies hav...

BACKGROUND Up to now, the role of adjuvant radiation therapy and the extent of lymph node dissection for early stage endometrial cancer are controversial. In order to clarify the current position of the given adjuvant treatment options, a systematic review was performed. MATERIALS AND METHODS Both, Pubmed and ISI Web of Knowledge database were searched using the following keywords and MESH he...

Brachytherapy is a curative alternative to radical prostatectomy or external beam radiation [i.e. 3D conformal external beam radiation therapy (CRT), intensity-modulated radiation therapy (IMRT)] with comparable long-term survival and biochemical control and the most favorable toxicity. HDR brachytherapy (HDR-BT) in treatment of prostate cancer is most frequently used together with external bea...

Sir, In Urology Journal 2008;5:269-71, Basiri and Radfar reported on the serious but rare complication of spontaneous intraperitoneal bladder rupture following salvage radiotherapy for biochemically recurrent prostate cancer.(1) This was successfully managed by conservative methods. Bladder rupture has been described as a complication of both pelvic external beam radiation therapy and brachythe...

P Introduction ermanent seed-implant treatment using I radionuclide is currently a standard procedure for early-stage prostate carcinoma, and the method is now considered comparable to external-beam radiation therapy and prostatectomy. As with external beam radiation therapy, permanent seed implant treatment of the prostate requires a dose-outcome correction, pointing out the importance of the ...

01. Squamous cell carcinomas of the head and neck generally arise from the a. Submucosal tissues. b. Major and minor salivary glands. c. Muscular tissues of the oropharynx. d. Mucosal lining of the upper aerodigestive tract. 02. The primary radiobiologic principles of radiation, known as the “4 Rs” of radiation therapy, are repair, repopulation, redistribution, and a. Recall. b. Radionecrosis. ...