Background/Introduction Tumor histology and stage are predictors of survival in patients with malignant pleural mesothelioma (MPM). The TNM classification that is widely accepted for MPM has its limitations. Significance of tumor volume, a better representation of tumor burden is not routinely determined. We hypothesized tumor volume is a better predictor of survival and complimentary to T and ...

BACKGROUND Cervical cancer is associated with a high yearly mortality. The presence of persistent disease after radiotherapy is a significant predictor of patient survival. The aim of our study was to assess if tumor volume regression measured with MR imaging at the time of brachytherapy can discriminate between patients who eventually will achieve a complete response to radiotherapy from those...

Change in tumor volume after chemotherapy appears to have a prognostic significance for the outcome of osteosarcoma. A newly developed volume measurement method based on three-dimensional summation with a proved reproducibility was utilized to measure osteosarcoma tumor volume. This retrospective analysis included 38 patients with biopsy- proven, nonsurface, skeletal high-grade osteosarcoma. Th...

introduction: as a physical treatment, electrochemical therapy (echt) has provided an effective and useful  approach  for  treating  localized  tumors.  the  chemical  changes  due  to  a  direct  electric  current  destroy  the  tumor. this study evaluates the effect of electrical dose and polarity on the efficacy of the treatment of a  colon tumor model.  materials and methods: in order to in...

The primitive neuroectodermal tumor (PNET) belongs to a group of highly malignant tumors and is composed of small round cells of a neuroectodermal origin. Categorized in the same tumor family as Ewing sarcoma, the PNET is most likely to occur in bones and soft tissues. However, a small number of PNET cases arising in the pelvis have been reported as well. We present three cases of pelvic PNET: ...

Standard imaging cannot assess the pathology details of intrahepatic cholangiocarcinoma (ICC). We investigated whether CT-based radiomics may improve prediction tumor characteristics. All consecutive patients undergoing liver resection for ICC (2009-2019) in six high-volume centers were evaluated inclusion. On preoperative CT, we segmented (Tumor-VOI, i.e., volume-of-interest) and a 5-mm parenc...

Mofid B1, Navabpoor M2, Alizadeh Azimi M3 1. Assistant professor, Department of Radiotherapy, Faculty of Para-Medicine, Shahid Beheshti University of medical sciences 2. Instructor, Department of Technology of radiology, Faculty of Para-Medicine, Shahid Beheshti University of medical sciences Abstract Background: Photoelectron therapy method has been usad successfully, on the body phantom...

BACKGROUND AND PURPOSE Perfusion CT (PCT) provides a rapid, reliable, and non-invasive technique for assessing tumor vascularity. The purpose of this study was to assess whether pretreatment dynamic perfusion CT (PCT) may predict response to induction chemotherapy and midterm progression-free survival (PFS) in advanced oropharynx squamous cell carcinoma (SCCA) and to compare the results with th...

PURPOSE The aim of this study was to evaluate changes in breast tumor bed volume during whole breast irradiation (WBI). MATERIALS AND METHODS From September 2011 to November 2012, thirty patients who underwent breast-conserving surgery (BCS) followed by WBI using computed tomography (CT) simulation were enrolled. Simulation CT scans were performed before WBI (CT1) and five weeks after the bre...