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Doctor insights on: Ct Head With And Without Contrast

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Head CT with and without contrast - what does the contrast help reveal?

Head CT with and without contrast - what does the contrast help reveal?

Highlights: The contrast will flow through the blood stream and highlight structures providing additional information and definition. ...Read more

Dr. Hirenkumar Italia
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 organs will a chest CT scan show with and without dye ?

What organs will a chest CT scan show with and without dye 
?

There are: different ways to perform a chest CT, depending on what your doctor is looking for. A "routine" CT will show lungs, mediastinum, aorta and great vessels, heart, ribs, upper abdomen, thoracic spine. ...Read more

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For CT scan of abdomen with and without contrast, will it cover stomach too?

For CT scan of abdomen  with and without contrast, will it cover stomach too?

Only partially: The stomach is visualized on an abdominal ct scan, but may stomach diseases (such as gastric ulcers) may be missed. An endoscopy is a better way of evaluating the stomach. ...Read more

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Does an abdominal CT scan with and without contrast have the same amount of radiation as two CT scans?

Does an abdominal CT scan with and without contrast have the same amount of radiation as two CT scans?

Yes: The ct scan will consist of at least 3 parts. A very low dose scan to show the anatomy and allow for planning of the full ct scan. The next scan is the "real" scan without contrast. Then there will be at least 1 scan with contrast, usually when the veins are most opacified, at about 70 seconds after the start of the injection. However, some contrast scans have multiple phases for some anatomy. ...Read more

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Had ct of head with and without contrast for HA. Results show small cyst and recommend MRI. Should I be concerned?

Had ct of head with and without contrast for HA. Results show small cyst and recommend MRI. Should I be concerned?

Not without symptoms: If you are not having symptoms, I don't think you even need an MRI. It's just wasting time & money going after an incidental finding. Most brain cysts are benign. If they were expanding, you would have neurologic symptoms (headache, vision probs). What prompted the MRI in the 1st place? Discuss with your primary doc or use HealthTap Prime to get advice from someone who knows your medical history. ...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 pelvic/abdominal CT scan with barium and IV contrast detect back problems and sciatica?

Can a pelvic/abdominal CT scan with barium and IV contrast detect back problems and sciatica?

Some: The Radiologist will definitely be able to see your spine. The images from a CT of the abdomen are not formatted specifically to look at the spine however. The test of choice to evaluate sciatica is an MRI. ...Read more

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How dangerous is a head CT or MRI with contrast?

How dangerous is a head CT or MRI with contrast?

Both are very safe.: The ct uses a small amount of radiation and sometimes an injection into the veins is made to see the images differently. The MRI uses no radiation and it can also use an injection for better diagnosis, . ...Read more

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Can an MRI of head done with and without contrast visualized blood flow through vessels in brain?

Can an MRI of head done with and without contrast visualized blood flow through vessels in brain?

MRI with contrast : Yes. This is an acceptable way to visualize the blood vessels of the beain. ...Read more

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Would CT scan of chest abdomen and pelvis with contrast help diagnosis of celiac disease?

Would CT scan of chest abdomen and pelvis with contrast help diagnosis of celiac disease?

Doubt it: If any irregularities in the intestinal wall were found, it would be just that, irregularities. Their presence would suggest a problem but the overlap with other possible conditions would make the information inconclusive. A normal study would also not rule out the condition. ...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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Does a contrast CT scan to view my kidney include both IV and oral contrast? Is this an abdominal CT scan or just renal/urinary?

Does a contrast CT scan to view my kidney include both IV and oral contrast? Is this an abdominal CT scan or just renal/urinary?

Depends: It depends on what the doctor has ordered and is looking for. No contrast will be used typically if the doctor is looking for kidney stones. If they are looking and the tissue of the kidneys directly, IV contrast will be used. Generally oral contrast is not used when looking for kidney pathology. Your scan will also show the neighboring abdominal organs. ...Read more

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Routine ultrasound of abdomen showed a dark spot with size 1.2cm.My CT scan without contrast is non-conclusive, should I have a CT with contrast?

Routine ultrasound of abdomen showed a dark spot with size 1.2cm.My CT scan without contrast is non-conclusive, should I have a CT with contrast?

Depends: Too many factors involved to comment. Ask the doctor who ordered the studies, or a specialist in the field of whatever organ the dark spot is on. Hope this helps! ...Read more

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In ruling in or out cerebral aneurysm is mra study enogh or MRI with and without contrast is also needed with mra for better accuracy?

In ruling in or out cerebral aneurysm is mra study enogh or MRI with and without  contrast is also needed with mra for better accuracy?

Best tests: Cta and mra studies should readily demonstrate any significant aneurysm. If such a lesion is congenital and small, it may be missed, but ruptures tend to occur when larger than 0.9 mm, and the others would just be followed. If you possess uncontrolled high blood pressure, an acquired aneurysm, called charcot-bouchard, could result in hemorrhage, so watch your bp. ...Read more

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What can be diagnosed with head CT scan?

What can be diagnosed with head CT scan?

Hemorhage: This test is very sensitive at detecting blood leaking into the brain. Many other things may also be found such as stroke, tumor, anomalies, sinusitis. ...Read more

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Have 5-6 mm calcified lump in the posterior neck, doctor recommend imaging. Should do MRI with and without contrast or CT w/ contrast? Benefits/risks?

Have 5-6 mm calcified lump in the posterior neck, doctor recommend imaging. Should do MRI with and without contrast or CT w/ contrast? Benefits/risks?

Neither!: If you know the lump is calcified, you're best off not doing any imaging. If you want to know what it is, go to a surgeon or pathologist who can manage a simple biopsy, probably in his office, to figure out what it is. A FNA (fine needle aspiration) may work out for you. If you REALLY need to know if it is solid or a cyst, then ultrasound is better. CT involves radiation. MRIs are $$. Avoid them. ...Read more

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