CT colonography: detection of lesions and patients’ preference: correlation with standard colonoscopy

Che Mohamed, Siti Kamariah and Abd. Aziz, Azian and Md Ralib @ Md Raghib, Ahmad Razali and Hassan, Radhiana and Md Nor, Azmi and Mohd Rus, Razman and Mohd Yusof, Mubarak and Abdul Rahman, Zainun (2014) CT colonography: detection of lesions and patients’ preference: correlation with standard colonoscopy. In: International Research, Invention and Innovation Exhibition 2014 (IRIIE2014), 11th -13th June 2014, Cultural Activity Center (CAC), Internatioanal Islamic University Malaysia. (Unpublished)

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Abstract

The aim of the study is to measure the prevalence and types of abnormalities on CT Colonogra- phy, and to assess the association between standard colonoscopy and CT Colonography. Another aim of the study is to determine the level of preference between standard colonoscopy and CT Colonography. Materials and Method A total of 24 patients were included in the study. All pa- tients underwent a standard bowel preparation (phospho-soda/Fleet@). Patients underwent CTC within 4 hours after standard colonoscopy. Su�cient amount of air was insu�ated through rectal tube for colonic distension prior to scanning. CTC was performed using a 4detector row helical CT scanner (Somatom Volume Zoom). Image acquisition was done in prone and supine positions. Scanning parameters were as per CTC protocal. The images were transferred to a remote syngo Colon Work ow Assisstant workstation for 2D and 3D data rendering. The endoluminal navi- gations were performed from rectum to caecum, in both retrograde and antegrade directions in order to visualize both sides of haustral folds. CTC �ndings were correlated with conventional colonoscopy �ndings, which were used as standard reference. For assessment of patients preference between CTC and standard colonoscopy, standard questionnaires were given to patients after both CTC and standard colonoscopy procedures. Results: A total of 24 patients were included in this study. Most of the patients were male (66.7%), and majority were Malays (70.8%). Age ranges from 20-70 years, but most of the patients were more than 40 years of age. Per rectal bleeding were the most common indication for colonoscopy (29.2%). Abnormal CTC results were detected in 62.5%. Abnormal results were due to tumour in 29.2%, polyp in 25% and diverticulum in 8.3%. Correlating with standard colonoscopy results, there is no signi�cant association between the two studies (P value = 0.092). For level of preference between CTC and standard colonoscopy and �nal selection between these two procedures, most of the patients were satis�ed with CTC procedure, which was 62.5%. Conclusion: Even though there were variations in the detection rates of CTC in various studies, results may improve further with ongoing technical improvements and increasing experience. As there is increasing demand of endoscopic units for colorectal cancer screening, CTC o�ers an e�ective alternative especially in symptomatic patients and may become an important screening method for colorectal cancer in future. Furthermore, CTC has higher acceptability to patients due to its advantages over standard colonoscopy.

Item Type:	Conference or Workshop Item (Poster)
Additional Information:	4532/42127
Uncontrolled Keywords:	CT colonography
Subjects:	R Medicine > R Medicine (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Medicine > Department of Radiology
Depositing User:	Dr. Siti Kamariah Che Mohamed
Date Deposited:	11 May 2015 11:45
Last Modified:	11 May 2015 11:45
URI:	http://irep.iium.edu.my/id/eprint/42127

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