The Role of Computed Tomography & Magnetic Resonance Imaging and Ultrasongraphy in detection of Gastrointestinal tract tumors

Abstract

Computed tomography (CT) scanning is typically used in the evaluation of patients with known colonic neoplasm's or in the detection of colorectal tumors in patients with nonspecific abdominal complaints. Magnetic resonance imaging (MRI) is extremely helpful in detection and characterization of suspected hepatic metastases, particularly in the setting of a negative CT scan. MRI is also effective in the staging of tumor for local extension. Transrectal ultrasonography has become popular in staging tumors for local extension because of its ability to demonstrate the various layers of the colon wall. The incidence of gasterointestinal tract tumors is expected to increase in the future. This research paper is focus on the role of Computed tomography (CT scan),Magnetic resonance Imaging (MRI) and Ultrasound (u/s) in detection of tumors in the human body.The evaluation of of (CT scan), (MRI) and Ultrasound can provide valuable information regarding GIT tumors .So the final diagnosis depend and based on imaging modalities for detection GIT tumors. The various imaging modalities that used for detection of GIT tumors .Researcher also discuss the various imaging characteristics after administration of contrast agent .MRI like CT scan has difficulty in diagnosing metastases local lymph node involvement however, transrectal ultrasonography (TRUS) has recently became popular in staging colonic malignancy. Key-words: Role Computed tomography Ultrasound tumors Magnetic resonance Imaging