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Doctor insights on: Mri Or Ct Scan For Brain Tumor

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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
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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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Do CT scans see brain tumors?

Do CT scans see brain tumors?

They can: The diagnostic yield of increased with use of IV contrast material as some tumors disrupt the so called blood brain barrier affording the contrast the ability to infiltrate from the blood stream into the tumor. Small tumors that have not disrupted the integrity of blood vessels may escape detection on CT especially if the have the same radiographic tissue density as their surrounding tissue. ...Read more

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Can a CT scan without contrast dye detect brain tumours?

Can a CT scan without contrast dye detect brain tumours?

Should do it: If a brain tumor is causing significant symptoms, it should surely be large enough to be detected on a cat scan. ...Read more

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Could CT scan cause a brain tumor?

Could CT scan cause a brain tumor?

Rare: Many ct scans of the head can theoretically cause brain cancer several years later. See radiology physicist at your hospital to calculate your dose and risk if you had many head ct scans. ...Read more

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Can CT scan without contrast show any brain tumors?

Can CT scan without contrast show any brain tumors?

Sometimes: Brain swelling, hemorrhage and mass effect can be noted on a head ct without contrast. Also, some tumors have calcification a which can be seen in a head ct. Smaller and lower grade tumors can sometimes be missed on a head ct without contrast. ...Read more

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Can a CT scan detect brain aneurysms?

Can a CT scan detect brain aneurysms?

CT angiogram: A regular ct scan might detect a large aneurysm with calcium. A test that is designed specifically to look for aneurysms is the ct angiogram. With this test contrast goes into the vessels of the brain. If there is an aneurysm that is larger than 2 mm, it should be detected with this technique. ...Read more

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Is it possible for MRI or CT scan to detect brain cancer?

Is it possible for MRI or CT scan to detect brain cancer?

Yes: A CT scan can detect a brain tumor, but will be better able to detect a tumor if it performed with IV contrast. Mri with contrast can detect very small tumors that may not be seen with a ct scan. ...Read more

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Lung tumor CT scan with or without contrast?

Lung tumor CT scan with or without contrast?

Either: I usually do them without so I don't expose the patient to the contrast, which can injure kidneys. However, if the tumor is close to the mediastinum, I usually do order it with contrast because it's often difficult to tell the various structures apart without it. It also helps to identify lymph nodes. ...Read more

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Can CT scan without contrast show brain aneurysm?

Unlikely: Ct scan without contrast is unlikely to show an aneurysm unless it is very large and is calcified. A ct angiogram is a better study to visualize an aneurysm. ...Read more

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Non contrast CT scan show growing brain tumor, what is wrong?

Non contrast CT scan show growing brain tumor, what is wrong?

Need more evaluation: It is very difficult to diagnose a brain tumor on a non-contrast ct scan. I would recommend getting a brain MRI with contrast (called gadolinium). Mri takes a much better look at the brain than does ct. ...Read more

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Can MRI or CT scan show brain damage from stimulants?

Can MRI or CT scan show brain damage from stimulants?

Stimulants: Stimulants such as Cocaine and amphetamine exert their effects on the user's nervous system and change the user's emotions, behavior, and affects cognition. They may cause miicrovascular ischemic disease of the brain which is unlikely to be detected by MRI or ct scan. ...Read more

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Can a CT scan find a brain tumor?

Can a CT scan find a brain tumor?

Brain tumor: Some kinds of tumors are better diagnosed by ct and some by mri. Are you having issues with headaches, etc? You should see a doctor if you have any symptoms that make you worry about brain tumor. ...Read more

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Can a CT scan miss a brain tumor?

Can a CT scan miss a brain tumor?

Yes!: I have seen this happen occasionally when brain tumors occur in the back part of the brain (posterior fossa) where the ct scan can be distorted by the bones. It is rare, however. ...Read more

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Does getting an MRI reveal brain tumors?

Does getting an MRI reveal brain tumors?

Usually: An MRI is probably the best way to detect a brain tumor in a patient who has symptoms or findings on a medical examination that suggests a brain tumor may exist. Getting an MRI if you are asymptomatic(have no medical issues) is unwarranted and should not be done. ...Read more

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Can MRI with contrast miss brain tumor?

Can MRI with contrast miss brain tumor?

Best test: An MRI with contrast is the best test to detect a brain tumor. If the MRI did not detect a brain tumor then it is likely either too small to see or there is no brain tumor. ...Read more

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Please tell me, could MRI or CT scan detect brain cancer?

Please tell me, could MRI or CT scan detect brain cancer?

Yes: Any of those tests, particularly the mri, could detect cancer in the brain, be it one that started in the brain itself or one that came from elsewhere. Of course, no test is perfect and if the cancer is small enough, it might not be seen with either scan. ...Read more

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Can a CT and MRI without contrast detect a pituitary tumour?

Can a CT and MRI without contrast  detect a pituitary tumour?

Yes it could: Ct is more dependent on contrast. But MRI has two phases(t1and t2) which can serve like a contrast and the tumors often show up better in t2 weighted images. ...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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Can a CT scan miss a brain tumor or mass?

Yes: Ct scans can certainly on occasion miss a small tumor, especially when they are down in the posterior fossa at the base of the skull. Mri scans are more sensitive and less likely to miss a tumor, but even they can on rare occasions miss one that shows up later. These scans are read by human beings, and they can miss something that is there, too. ...Read more

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Ct scan can reveal a brain tumour and an MRI showed nothing. Which to believe?

Strange: Usually an MRI is more sensitive (better) at detecting rumors than CT. Did the radiologist who read the MRI have access to the CT and its report? It is possible that something that was thought to be a mass on a CT turned out not to be one on MRI. ...Read more

Neoplasms (Definition)

"tumor" literally translates as "mass", so even a fresh bruise could be called a "tumor". Doctors use the term "neoplasm" (tranlates literally as new growth) to describe tumors that are abnormal growths of cells. These may be benign or malignant; "malignant" = cancer. In everyday usage, we use "tumor" ...Read more


Dr. Wayne Ingram
5 doctors shared insights

Mri (Definition)

Magnetic resonance imaging named for the effects of the strong magnetic field upon the atomic and molecular phase or spin and the image created when that magnetic field is altered and the excited particle changes gibing off a signal that is recorded and interpreted by a complex computer algorithm, ...Read more