Introduction Total body irradiations (TBI) for conditioning patients with leukemia prior to bone marrow transplantation (BMT) require time consuming verification of shielding block positions as well as dosimetric control. Short treatment times contribute to reproducibility and patient comfort and increase the accelerator capacity. To reduce setup time conventional port films were replaced by a ...

Submit Manuscript | http://medcraveonline.com Abbreviations: TCP: Tumor Control Probability; NTCP: Normal Tissue Control Probability; LKB: Lyman Kutcher Burman; IGRT: Image Guided Radiation Therapy; IMRT: Intensity Modulated Radiation Therapy; SIB-IMRT: Simultaneous Integrated BoostIMRT; VMAT: Volumetric Modulated Arc Therapy; DA: Double Arc; SA: Single Arc; HT: Helical Tomotherapy; IFP: Improv...

Purpose: To validate a locally fabricated phantom of Imatrixx-2D Array by comparing its results with ArcCheck phantom and comparing portal dosimetry measurements with the two phantom studies. Materials and Methods: Electronic Portal Imaging Devices and Epiqa software were used for portal dosimetry. An Imatrixx-2D array with a locally fabricated phantom and ArcCheck cylindrical phantom were used...

This article presents an overview of pre-treatment verification of volumetric modulated arc therapy (VMAT) with electronic portal imaging devices (EPIDs). Challenges to VMAT verification with EPIDs are discussed including EPID sag/flex during rotation, acquisition using cine-mode imaging, image artefacts during VMAT and determining the gantry angle for each image. The major methods that have be...

Objective: The aim of this study was ultrasonographic findings and technique ofthe liver in the Lori breed sheep.Design: Descriptive study.Animals: 10 clinically healthy, female sheep.Procedures: Ultrasound examination of liver performed from the caudal aspect of13th rib to the 7th intercostals spaces (ICS). The possibility of liver imaging fromeach ICS, distance between the position of liver i...