الفهرس 
List of ContentsOnly 14 pages are availabe for public view
 |  | from | 115 |  |  |
| | | from | 115 | | |
Abstract
Our study included 20 cases with their age ranging from 9 to 70 years old with mean age group 39 years old. This study was conducted at Diagnostic Radiology department of Mansoura university hospitals from September 2019 to August 2020 on twenty patients referred from Orthopedic department, Mansoura university hospitals. All the patients were subjected to the following: - 1. Full clinical data of each patient was taken and recorded such as: gender, age, tumor location and tumor type. 2. Plain X-ray. 3. Each patient was subjected to CT angiography study using the following images: • Multiplanar reconstruction (MPR) in sagittal and coronal planes. • Three-dimensional Volume rendering (VR). • Maximum intensity projection (MIP). • Subtraction images. Preoperative imaging plays a major role in planning the treatment in patients with musculoskeletal neoplasms. The radiologist must have a thorough knowledge of the modalities and techniques available to select the most efficient imaging protocol to solve the diagnostic problem. Advanced surgical techniques for limb salvage surgery in musculoskeletal tumors require information on the extent of invasion of the tumor and its association with adjacent structures. While planning limb salvage surgery, it is critical for the orthopedic tumor surgeons to know the extent of vascular invasion. With the developments in imaging and postprocessing techniques in the last decade, computed tomographic angiography (CTA), performed with multidetector computed tomography (MDCT), has been commonly used clinically and has become a widely accepted examination method for evaluating vascular structures CT angiography (CTA) is a noninvasive imaging technique, providing data on the main vascular structures adjacent to the tumor, the association between the tumor and the vascular structure, the vessels feeding the tumor, and the vascularity of the tumor. CTA has several advantages over MRA.