The impact of prescription depth, dose rate, plaque size, and source loading on the central axis using 103Pd, 125I, and 131Cs.

Purpose: Modern dosimetry data are not available for Collaborative Ocular Melanoma Study-based eye plaques. This report aims to provide these data for eye plaques ranging from 10 to 22 mm, and for three different low-energy, photon-emitting radionuclides.

Methods And Materials: Recent publications on brachytherapy dosimetry parameters for 103Pd, 125I, and 131Cs were evaluated for use as eye plaque reference data.

Limited resection for non-small cell lung cancer: observed local control with implantation of I-125 brachytherapy seeds.

Background: Limited resection for lung cancer has been associated with a relatively high incidence of local recurrence. This retrospective study evaluates the impact of implanting radioactive iodine-125 (125I) seeds along the resection margin in these patients.

Methods: Thirty-three patients with lung cancer who were not candidates for lobectomy or pneumonectomy underwent a limited resection of 35 primary non-small cell lung cancers.

Implementation and utility of a daily ultrasound-based localization system with intensity-modulated radiotherapy for prostate cancer.

Purpose: To evaluate the clinical feasibility of daily computer-assisted transabdominal ultrasonography for target position verification in the setting of intensity-modulated radiotherapy (IMRT) for prostate cancer.

Methods And Materials: Twenty-three patients with clinically localized prostate cancer were treated using a sequential tomotherapy IMRT technique (Peacock) and daily computer-assisted transabdominal ultrasonography (BAT) for target localization. Patients were instructed to maintain a full bladder and were placed in the supine position using triangulation tattoos and a leg immobilizer to minimize pelvic rotation.