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Yes.
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Do CT scans provide a much higher resolution of anatomical detail than do MRI scans?
As we know,Clarity of the image is decided by its Spatial Resolution but not by Pixel Resolution. CT have high Spatial Resolution but MRI have comparable Spatial Resolution to CT&far better Contrast Resolution than CT-So,MRI is the BEST to demonstrate Anatomy,especially in parts containing more soft tissue[Eg:Brain]&CT is the BEST to demonstrate Bony Anatomy.
Can a ct scan without contrast detect brain tumor?
Yes, brain tumours can show up very clearly on CT scans especially if the patient is injected with an X-ray dye.
How do GI bleeding scans work?
Bleeding scans are based on the accumulation of radioactive material as it exits from the vessels during a bleeding episode.
Why do they inject dye into you before a ct scan?
Dye is used to enhance tissues, to increase contrast between tissues that receive blood and structures that do not. There can be scans before, during, and at different delays after injection. The enhancement pattern, or lack of enhancement, is the basis for diagnosis (along with morphologic information from the scan).
Why is fasting before a cat scan necessary?
Its not safe because something might go wrong in the scan and the antibiotic/sleeping injection might react with food and it won't show a clear and good picture of your cat's insides. -------------------------------------------------Improvement By the wording of the question, 'cat' scan may actually refer to CT scan or Computed (Axial) Tomography scan. Fasting before the scan for 4 to 6 hours or more may be required for certain scans requiring contrast media (iodine-based dyes to visualize certain organs better) or scans of the abdomen to avoid compounding results since certain food items may mimic human tissue in its response to X rays or reduce the effectiveness of contrast provided by contrast media.
What 2 Major types of CT scans are performed?
CT scans with contrast, and CT scans without contrast.
How are spinal cord injuries diagnosed?
The location and extent of spinal cord injury is determined with computed tomography scans (CT scans), magnetic resonance imaging (MRI) scans, and x rays. X rays may be enhanced with an injected contrast dye.
What do they use contrast dye for?
Contrast dye is used in the medical field for x-rays and MRI scans. It is used to help the medical professional focus on certain areas, such as blood vessels that might have a blockage.
Can the contrast agents used during computed tomography scans be dangerous?
Contrast agents are often used in CT exams and the use of these agents should be discussed with the medical professional prior to the procedure. Patients should be asked to sign a consent form concerning the administration of contrast.
Do CT scans provide a much higher resolution of anatomical detail than do MRI scans?
As we know,Clarity of the image is decided by its Spatial Resolution but not by Pixel Resolution. CT have high Spatial Resolution but MRI have comparable Spatial Resolution to CT&far better Contrast Resolution than CT-So,MRI is the BEST to demonstrate Anatomy,especially in parts containing more soft tissue[Eg:Brain]&CT is the BEST to demonstrate Bony Anatomy.
What kinds of contrast agents for computed tomography scans are there?
Some contrasts are natural, such as air or water. Other times, a water-based contrast agent is administered for specific diagnostic purposes. Barium sulfate is commonly used in gastroenterology procedures.
Can a ct scan without contrast detect brain tumor?
Yes, brain tumours can show up very clearly on CT scans especially if the patient is injected with an X-ray dye.
Why is contrast medium used in certain diagnostic tests?
Contrast is typically a dye that helps to outline organs or blood vessels. Flouroscopy, MRIs, or CAT scans can see much of the body structures without contrast, but to obtain more detailed images a physician may order the tests to be done "with contrast". Other types of contrast material may be barium (ex. a "barium swallow" or upper GI with contrast shows the esophagus and stomach) or radioactive (ex. for thyroid testing).
Can contrast agents for computed tomography scans cause side effects?
Some patients may experience a salty taste, flushing of the face, warmth or slight nausea, or hives from an intravenous contrast injection. Technologists and radiologists have equipment and training to help patients
How is echinococcus diagnosed?
CT Scans - MRI Scans
How often can an MRI be performed on the same person safely?
MRI uses high magnetic fields and radio frequency and not x-ray. The procedure is generally safe and typically repeated examinations do not cause any problems. However, some MRI scans use a Gadolinium-based contrast agent, so repeating MRI scans within a few days may expose a patient to higher-than-expected levels of the contrast agent in the blood, which can be affected by kidney function. Patients should check with their doctor before having a repeat contrast MRI scan within a few days.
How do you find brain damage?
several ways - CAT scans, PET scans, ECG scans...check it up with ur doctor
