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Doctor insights on: Head Ct Vs Mri

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Could MRI or CT scan detect brain cancer?

Could MRI or CT scan detect brain cancer?

Sure: Mri would be the imaging test of choice, though often we start with a ct. Ultimately, you'll likely need a biopsy to prove it's a cancer. ...Read more

Dr. Mark Pack
1 doctor shared a insight

Computed Tomography (Definition)

Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more


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What would a CT head scan show versus having a MRI head scan? And with or without contrast?

What would a CT head scan show versus having a MRI head scan? And with or without contrast?

Need to talk with : Your ordering doctor. Depends on what is being evaluated, and the differential diagnosis. Ct is a good quick screen for bleed, masses, skull fractures, etc. And MRI gets you good soft tissue details, and lets you better evaluate the gray and white matter, also allows you to evaluate bleeds, helps you tell if old or new bleed, also helps you see tumors, strokes (ischemic areas, atrophy, etc.). ...Read more

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What does CT scan of head without contrast show?

What does CT scan of head without contrast show?

Many things.: It can detect many conditions. Ct is particulaly good at detecting bleeding in the acute setting and hydrocephalus, and some masses. It's not nearly as good as MRI for looking at small structures and white matter disease. Both ct and MRI are usually more sensetive and specific when contrast is given. ...Read more

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Mri scan and head CT used for cognitive impairment?

Mri scan and head CT used for cognitive impairment?

Yes: Yes both can be helpful in evaluation of the brain for causes of cognitive impairment although MRI is usually more sensitive. ...Read more

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How much for a CT scan vs mri?

How much for a CT scan vs mri?

About the same: There were appreciable differences in previous years but most facilities charge about $800-1000 for a ct and about $1200-1500 for an mri. It can vary greatly depending on where you have it done. Call ahead and try to negotiate a price. ...Read more

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How are mr scan and a CT scan different?

Contrast difference: Ct uses a combination of xrays shot from multiple directions to look at differences in tissue density. Mri uses strong magnetic fields instead of xrays to differentiate tissues and gives much better contrast than ct. Ct is typically used in the acute setting to see if there is blood or major abnormalities. Mri is a more specific exam to differentiate abnormalities such as stroke or tumor. ...Read more

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Is orbital CT scan and CT scan sinus the same?

Not quite: The CT of the sinuses focuses in on the sinuses (though the radiation goes through the entire skull) and generally covers the entire set of sinuses (sphenoid, maxillary, frontal, ethmoid). The orbital CT will cover the eye sockets (and those pictures are zoomed in). While the sinuses lies behind the eyes (& so they overlap), the focus & coverage of these scans are slightly different. ...Read more

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Can a non contrast head CT scan miss anything?

Can a non contrast head CT scan miss anything?

Yes: A ct scan with IV contrast will be more sensitive for detecting lesions than a non-contrast ct, and an MRI with contrast is even better than a ct scan. ...Read more

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Ct scan of neck with contrast looks for what?

Ct scan of neck with contrast looks for what?

To show the cause: A ct scan of the neck can show problems with the discs, the nerve, the spine, the spinal cord and how these interact to produce pain. The contrast can differentiate things like scar from tumor etc. ...Read more

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Can a CT scan of the head without contrast dye detect brain aneurysms?

Can a CT scan of the head without contrast dye detect brain aneurysms?

Yes: While plain ct scan is not the best test for aneurysm, large aneurysms can potentially be spotted. Mri is a better test, especially when blood vessels are looked at as well. ...Read more

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Will a temporal CT scan show tmj?

Possible: It's in the area, so it is possible to see TMJ, but probably not the right parameters, so unlikely radiologist will make a diagnosis without a formal CT/MRI of TMJ ...Read more

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Which is best chest CT vs chest mri?

Which is best chest CT vs chest mri?

It depends: Chest ct is more commonly used to evaluate the lungs, blood vessels, bones, and soft tissues. Chest mri, which takes longer to perform, is typically reserved for evaluation of diseases of the blood vessels (aorta, etc.), the heart, or masses that need to be further characterized. Chest ct is better at evaluating the lungs. ...Read more

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What would an MRI of my head show that a Sinus CT Scan and a Maxiofacial CT Scan didnt?

What would an MRI of my head show that a Sinus CT Scan and a Maxiofacial CT Scan didnt?

Quite a Lot: MRI is more helpful for soft tissue problems of blood vessels, inflammation, demyelination of brain tissue, and fluid collections. It seems you are undergoing a lot of tests, but without a clear diagnosis you can not be certain of the correct treatment. Ask your physician to explain the different treatments these tests will suggest. Tests are not useful, solely, because you have symptoms. ...Read more

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Ct scan of neck results show what?

Ct scan of neck results show what?

Many Things: Ct scans of the neck can show problems with the spine, the spinal cord, the esophagus, the thyroid, the trachea, and anything else that naturally occurs in the neck. ...Read more

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What is the difference between MRI contrast and CT scan contrast ?

What is the difference between MRI contrast and CT scan contrast ?

Not same: Mri contast gadolinium does not contain iodine while ct contrast contains iodine. An allergic reaction to ct contrast does not mean that you will have a reaction to gadolinium during your MRI scan. True allergies to the MRI contrast are exrtremely rare; however, you may still experience some symptoms like feeling lightheaded or nauseated due to the injection. Good luck with the exam! ...Read more

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In what aspects CT scan is better than MRI scan?

Looking at bone: The CT scan is better than MRI in detecting bone fractures or pathologies involving the bone. MRI is better at distinguishing between soft tissues. CT scan is also faster & quieter than MRI. However, the CT scan uses radiation & there has been an explosion of radiation-related conditions in recent years. Each modality measures different things. So ask your doctor if the test is needed or not. GL. ...Read more

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How are an MRI and CT scan different?

How are an MRI and CT scan different?

Differences: The ct scan uses radiation from multiple x-ray devices to see internal organs. The MRI uses very strong magnetism to orient the body's water molecules and see internal structures such as ligaments, joints, brain, etc. Each study has its own individual benefits or indications. ...Read more

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Have pituitary tumor ever been seen on non-contrast CT or MRI scans?

Have pituitary tumor ever been seen on non-contrast CT or MRI scans?

Yes: The addition of contrast increases the ability to see these tumors. Mri with contrast is the best imaging test we have to see the pituitary gland. ...Read more

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Dr. Austina Cho
5 doctors shared insights

Mri (Definition)

Mri or magnetic resonance imaging is one of the more recently developed imaging modalities available to physicians. It uses powerful magnets to generate images. There is no ionizing radiation which is a major advantage over many other modalities. Mri is the best imaging exam that we have for most soft tissue and joint related problems. There are radiologists ...Read more