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Doctor insights on: Mri Scan Vs Xray

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Could a CT scan show anything a MRI scan cannot ?

Could a CT scan show anything a MRI scan cannot ?

Yes: Some Doctors who interpret MRI exclusively in their practice will promote the idea that MRI is the best imaging technique for every condition. To a lesser extent, some Doctors will say CT. Some doctors swear by Ultrasound imaging. There are strength and weaknesses of each modality, with considerable overlap in information produced. And each modality has some advantage over others. ...Read more

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Dr. James Krick
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


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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

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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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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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What's difference between High HD Contrast CT scan vs Normal Chest CT with contrast evaluating interstitial lung markings?

What's difference between High HD Contrast CT scan vs Normal Chest CT with contrast evaluating interstitial lung markings?

Different chest CTs: High resolution chest CT usually with out intravenous contrast is used to define interstitial lung disease pattern, whether diffuse or localized process. CT of chest examination with contrast intravenously usually looking for tumors or metastases and acute infection in the lungs. ...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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Could a CT scan without contrast show an aneurysm?

Yes: The contrast is to show blood flow. While some aneurysms have wall to wall flow, most are lined by thrombus, with only the central portion of the aneurysm showing flow. The CT scan can show the wall of the vessel, as well as flow. An arteriogram only shows flow. ...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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What heart scan is better, CT scanner or ultra scan?

What heart scan is better, CT scanner or ultra scan?

UltraSOUND: I think you mean cardiac ultrasound (also known as echocardiography). They look at different things. Echo sees over all function, wall thickness, chamber dimensions, valves, and can measure blood flow and pressure. Ct is for detecting calcium and looking at the coronary arteries. ...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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Would MRI scan show kidney disease?

Would MRI scan show 
kidney disease?

"Disease": "Disease, " yes; but not necessarily what type of disease. "Dense"/scarred parenchyma may still need to be biopsied to determine the actual tissue disease. On the other hand, an MRI may be a better test to assess rensl masses (eg renal cell carcinoma vs benign neoplasms). ...Read more

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How do pet scans, mri, ct, and bone/gallium scans differ?

How do pet scans, mri, ct, and bone/gallium scans differ?

Different mechanisms: Mri uses magnetic radiation( no x-ray) for anatomic localization and characterization of different parts of body, water and fat constitution of different tissues.Ct uses x-ray to characterize anatomy of body, better for bone than mr.Pet, bone, gallium scans use radio tracers intravenously.Petglucose metabolism of tumors, gallium (infection/tumor), bone scan for fxs, tumors, infection bone metabolism. ...Read more

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Would you see an enlarged right heart on a chest CT scan without contrast and CT scan x ray?

Would you see an enlarged right heart on a chest CT scan without contrast and CT scan x ray?

Yes if greatly enlar: An enlarged heart can be seen on X-ray or CT scan especially if it is greatly enlarged. However, the cause for the enlargement is usually not apparent by those means. An echocardiogram (ultrasound) usually does a better job. sometimes more specialized tests are needed. However, if this is the 1st time that an enlarged heart was detected, it is best to get it confirmed & identify the cause. GL & TY ...Read more

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What is the difference between pet scans, mri, ct, and bone/gallium scans?

What is the difference between pet scans, mri, ct, and bone/gallium scans?

A lot: Sorry to be so vague. They are very different in what can be seen and what can be diagnosed. Not enough room to go through the details. The Internet has many resources for this information. Try this one: http://www.radiologyinfo.org/ ...Read more

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Would abnormalities on a CT scan show up on an MRI test?

Would abnormalities on a CT scan show up on an MRI test?

Brief answer: Ct of chest is more accurate in detecting tumors, nodules, and lung disease. Mri /ct of chest are both good at congenital vascular and cardiac abnormalities.Ct shows coronary artery abnormalities.Ct for bone abnormalites, but MRI betterfor the marrow and soft tissue components. Certain bowel conditions can be identified with both modalities. The liver tumors and biliary system -mr. Kidneys both. ...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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What can a hip/pelvic CT scan show that a MRI cannot? (dr ordered bilateral hip/pelvic CT scan 2x45min in machine-worried about radiation)

What can a hip/pelvic CT scan show that a MRI cannot? (dr ordered bilateral hip/pelvic CT scan 2x45min in machine-worried about radiation)

The CT: Gives fine detail about the bones of the pelvis and hips. If your doctor is worried about arthritis or femoral-acetabular impingement this may give more information. Best to ask your doctor and relay your concerns. ...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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Dr. Anthony Filly
1,483 doctors shared insights

Roentgen Rays (Definition)

Roentgen rays are another term for x-rays, which are a form of electromagnetic radiation (other types include light and microwaves). X-rays are used to provide imaging with plain ...Read more