[P275] Comparison of 3D surface scan system and conebeamct in daily patient positioning for breast radiotherapy

Evaluation of daily patient positioning for radiotherapy with a commercial 3D surface-imaging system (Catalyst™)

BACKGROUND To report our initial clinical experience with the novel surface imaging system Catalyst™ (C-RAD AB, Sweden) in connection with an Elekta Synergy linear accelerator for daily patient positioning in patients undergoing radiation therapy. METHODS We retrospectively analyzed the patient positioning of 154 fractions in 25 patients applied to thoracic, abdominal, and pelvic body regions...

Optical Surface Management System for Patient Positioning in Interfractional Breast Cancer Radiotherapy

Background The Optical Surface Management System (OSMS) is a simple, fast, reproducible, and accurate solution for patient set-up and can minimize random day-to-day set-up errors. However, studies in breast cancer patients are rare. Objective To analyze 200 patient set-ups in 20 patients with breast cancer by comparing the OSMS with the conventional cone-beam computed tomography (CBCT). Met...

Assessment of interfractional variation of the breast surface following conventional patient positioning for whole‐breast radiotherapy

The purpose of this study was to quantify the variability of the breast surface position when aligning whole-breast patients to bony landmarks based on MV portal films or skin marks alone. Surface imaging was used to assess the breast surface position of 11 whole-breast radiotherapy patients, but was not used for patient positioning. On filmed fractions, AlignRT v5.0 was used to capture the pat...

Compare the organs at risk in breast-conserving three- dimensional conformal radiotherapy (3D-CRT) based on patient\'s breast size

Introduction: Breast cancer is the most common cancer among women. Radiotherapy plays an important role in the treatment of breast cancer and essential part of the standard treatment after breast-conserving surgery, routinely done to eliminate the microscopic residual cancer. The heart and lungs are one of the most important organs at risk of breast cancer radiotherapy that th...

Surface Imaging for Patient Setup and Monitoring for Breast Radiotherapy