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CT Scan Reports
How does the Radiologist distinguish between Healthy and diseased organ from the CT scans?
We are all uncertain as to how the Radiologist is able to tell the difference between a healthy and a diseased structure or organs from the scan. Be assured that they are highly trained and they also work as a team. If the scanning results are not clear, they will ask you to return and obtain more precise images, or recommend another test to confirm. You may look at a few CT scanned images below which tell dramatic differences between healthy organ or organ cross sections and disease states:
Image 1 is a CT scan of a section of the brain, showing the difference between normal or healthy (Left) individual and an image obtained when he had suffered a stroke (right, red circle) due to cerebral (brain) arterial blood vessel blockage.
Reference: https://radiopaedia.org/articles/ischaemic-stroke
Image 2 is a contrast CT scan of brain cancer (red circle). The contrast made the tumor clear and more visible.
Reference: https://brainpictures.org/Brain-Cancer-Pictures.php
Image 3 shows a CT scan of infiltrating (invasive) cancer which has originated from elsewhere and has spread by invading into the colon. The contrast CT scan (Right) makes the cancer spot more clear and visible than the CT scan alone.
Reference: https://www.slideshare.net/
Image 4 shows a contrast CT of different angles of a lower arm that had undergone fracture (broken bone). It reveals the beauty of CT scan, being able to rotate and take images at different angles. At 90o angle of the arm, only a minorfracture is observed, compared to the double and more pronounced bone fractures observed with the arm at 180o angle.
How is CT scan different from MRI or PET?
CT, PET, and MRI scan tests are all diagnostic imaging techniques used to detect the presence of diseases in the body, but they work differently; CT scan uses small doses of ionizing radiation called x-rays to obtain images inside of your body as the scanner rotates and reveals if there is any abnormality of the organs or structures.
MRI (Magnetic Resonance Imaging), on the other hand, utilizes magnetic field and radio waves whichlineup with particles of the cells of the body to produce detailed images of the structures and organs; whilewith PET(Positron Emission Tomography), an individual having the test is injected with a radiotracer that has very smallradioactive sugar component and as the cells uptake and metabolize the tracer, radioactive energy is emitted which is used to generate images on a 3D computer. Thus PET scan reveals if the tissues or organs of the body are working properly by measuring its chemical and biological processes.
Computerized Tomography – CT Scan
For CT Scan treatment costs in India – Please refer to the following link CT Scan
For CT Scan treatment costs in India – Please refer to the following link CT Scan
For CT Scan treatment costs in India – Please refer to the following link CT Scan
References
- Schmidt CW. CT Scans: Balancing Health Risks and Medical Benefits. Environ Health Perspect. 2012; 120:a118–a121.
- Goldman LW. Principles of CT and CT Technology. J. Nucl. Med. Technol. 2007; 35:3 115-128
- Hunink MGM and Gazelle GS. CT screening: a trade-off of risks, benefits, and costs. J. Clin. Invest. 2003; 111:1612–1619.
- https://www.medicalexpo.com/cat/radiology/ct-scanners-pet-scanners-AJ-4.html
- https://www.newchoicehealth.com
- https://www.oakwood.org/?id=1561&sid=9&ChargeType=CT%20Scan
- cheapimaging.com
- https://www.healthcarebluebook.com/page_SearchResults.aspx?CatID=37
- https://brainpictures.org/Brain-Cancer-Pictures.php
- https://www.slideshare.net/
- https://www.dreamstime.com/stock-photo-x-ray-broken-arm-human-image47702962