Physics department Calculation The Risk of Computed Tomography Prepared by Rayan F Hassan Fatima A Mahmud Supervised byMscRozhan Outline Objective Introduction Radiation dose from CT scans ID: 928563
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Salahaddin UniversityCollege of sceincePhysics department
Calculation The Risk of Computed Tomography
Prepared by: Rayan F .Hassan
Fatima A .Mahmud
Supervised by:Msc.Rozhan
Slide2OutlineObjectiveIntroductionRadiation dose from CT scans
Ct scans lead to cancerGraphConclutionReference
Slide3ObjectiveTo assess the cancer risk in children and adolescents following
exposure to low dose ionising radiation from diagnostic computedtomography (CT) scans.
Slide4Introduction
The term “computed tomography”, or CT, refers to a computerized x-
ray imaging procedure in which a narrow beam of x-rays is aimed at apatient and quickly rotated around the body, producing signals thatare processed by the machine’s computer to generate cross-sectional
images—or “slices”—of the body. These slices are calledtomographic images and contain more detailed information thanconventional x-rays.
Slide5Introduction
*Computed tomography --also known as computed axial tomography,a CT scan, or a CAT scan -- is a tool doctors use to diagnose many
types of health problems. Special X-ray equipment creates images ofthe structures inside your body. * These pictures allow doctors to get a
look at your internal organs, tissues, and blood vessels.A CT scan exposes your body to some radiation.
Slide6Radiation doses from CT scans
A CT scan uses what’s called “ionizing” radiation. It’s powerful
enough to pass through your body to create clear images on acomputer. This type of radiation could raise your chances of cancer atsome point in the future.
Slide7Ct scan lead to cancer
Some people worry about getting this test because radiation is known as a possible causeof cancer. Know that the chances of getting
cancer from a CT scan are very low. And formany people, the test is worth the small risk ofradiation exposure. It can help doctors spot
dangerous health problems and check thattreatment works.Your doctor will make sure that the benefitsyou’d get from the scan outweigh the
drawbacks before they recommend it foryou.
Slide8Reference
1-https://www.nibib.nih.gov/science-education/science-topics/computed-tomography-ct{1}2-https://www.nibib.nih.gov/science-education/science-topics/computed-
tomography-ct{2}3-https://www.nibib.nih.gov/science-education/science-topics/computed-tomography-
ct{3}4. Guided by: Dr. Deepanshu Garg Department of Oral Medicine and Radiology College of Medical sciences,
Bharatpur Submitted by: Shekhar Kumar Mandal BDS IV, Roll no:26 Batch 2
nd
5-BMJ 2013;346:f2360
doi
: 10.1136/bmj.f2360 (Published 22 May 2013)
6-https://www.healthline.com/health/x-ray#risks{7}
7-Medically Reviewed by
Laur
https://www.webmd.com/cancer/can-ct-scans-
lead-to-
cancera
J. Martin, MD on July 19, 2020{9}
8-Greg Michael
The Centre for Medical, Health and Environmental Physics, Queensland University of
Technology, GPO Box 2434, Brisbane 4074, Australian
Slide9Thank You