To investigate the targeting accuracy of intensity-modulated SRS (IMRS) plans designed to simultaneously treat multiple brain metastases with a single isocenter.
The objective of this optimization model is to maximize the manufacturability and assembility of a cam-modulated linkage while maintaining acceptable kinematic accuracy of its output motion.
The nature of intensity-modulated radiotherapy dosimetry, centered on leaf position accuracy, is common to all MLCs.
Purpose: To present the TALON removable head frame system as an immobilization device for single-fraction intensity-modulated stereotactic radiosurgery (IMRS) and fractionated stereotactic intensity-modulated radiotherapy (FS-IMRT); and to evaluate the repositioning accuracy by measurement of anatomic landmark coordinates in repeated computed tomography (CT) examinations.
Additionally, the microwave load-pull and digital modulated evaluations have been carried out to verify the accuracy of this model, where a good agreement with experimental results can be achieved.
Numerical tests performed by using signals according to the UMTS standard show that the ANN demodulator can guaranty greater accuracy than the traditional one in the case the modulated signal is affected by high level of both noise and distortion.
Section 4 presents results with real lung tumor 3D motion data, and these are discussed in Section 5 with directions for further research on unexpected move processing, on increasing the accuracy via online estimation accuracy with connotations to intensity modulated approach.
The objective of this study was to develop and evaluate a series of quality assurance (QA) techniques based on Octavius 4D phantom for testing of respiratory-gated treatment delivery, integrity of dose rate vs gantry speed in volumetric-modulated arc therapy (VMAT) commissioning, and multileaf collimator (MLC) positioning accuracy of a linear accelerator.
Improved discrimination of malignant tissue in both the peripheral and central zones of the prostate would improve local staging performance, increase accuracy in performing biopsy, focusing of irradiation for intensity-modulated radiotherapy, follow-up of therapy response, and earlier detection of tumour recurrence.
Such approach seems to be promising for further improvement of prediction accuracy and for instant detection of unexpected moves with prospects to intensity modulated radiation tracking therapy.
