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Doctor insights on: When Do They Need A Ct Or Mri To Detect Ivh

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When do they need a CT or MRI to detect ivh?

When do they need a CT or MRI to detect ivh?

For a term, rarely: If a term or a late preterm infant is stable enough to be transported to ct or MRI area, and less than 4 days old, ct is preferred. Otherwise MRI is the best. They are recommended if the infant has seizures, extreme lethargy or irritability, recurrent apnea (forget to breath), evidence of trauma (like head injury from forceps or vacuum delivery), suspected shaken baby syndrome, CNS infections etc. ...Read more

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Dr. Bernard Seif
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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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Does a CT show how much plaque is present in the carotid siphons? Or do I need to do further tests

Does a CT show how much plaque is present in the carotid siphons? Or do I need to do further tests

Usually: A contrast CT (CTA, CT angiogram) can be very helpful looking at the vessel and the walls for calcium or soft plaque. US is not very good up there due to the skull base. MRI does not see calcium well. ...Read more

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When the ER doc is doing a CT scan on head to check for tumor and or aneurysm , do they have to use contrast? Or can I get it without contrast?

When the ER doc is doing a CT scan on head to check for tumor and or aneurysm , do they have to use contrast? Or can I get it without contrast?

For the best study: For brain tumors, a ct scan of the head without and with contrast best delineates the tumor. To check for an aneurysm, contrast is needed for the ct-angiogram. If you are concerned about radiation and contrast, and if it is an elective evaluation for brain tumor or aneurysm, you might consider an mri/mra. ...Read more

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Can spine X-ray diagnose small fractures? Or do you need to get CT or MRI anyway and skip x-ray? .

Can spine X-ray diagnose small fractures? Or do you need to get CT or MRI anyway and skip x-ray? .

They can: Find small fractures but ct is much more sensitive and accurate. Interestingly fractures can be very difficult to see on MRI but the MRI can offer a lot of other types of information. ...Read more

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Can a CT scan be done without constrast to show coronary arterys just to see if they are congenital anomolies?

Can a CT scan be done without constrast to show coronary arterys just to see if they are congenital anomolies?

No: A contrast enhanced exam is necessary to assess the coronary arteries in a meaningful way in young patients, especially. Cardiologists use contrast for catheterization, but noninvasive coronary angiography with contrast is preferable. Read more about ct scans and contrast here: http://www.Conciergeradiologist.Com/ct-scan-with-contrast.Html. ...Read more

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Can you tell me if CT scans usually pick up tumors?

Yes they do: Ct scans are one of the best means of detecting abnormal growths such as tumors in the human body. But only a specialist can guide you as to what kind of ct scan is required for proper imaging. In some body sites MRI scans are more useful than a ct scan. ...Read more

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How often do you need to use PET scan or bronchoscope to locate lung cancer because it does not show on CT scan but symptoms tell you to keep looking?

How often do you need to use PET scan or bronchoscope to locate lung cancer because it does not show on CT scan but symptoms tell you to keep looking?

Clinical judgement: This pathologist is underwhelmed with the health or public benefits of intensive screening for tiny lung cancers. I'd hope that if the person is symptomatic, some other investigations are undertaken and the actual cause gets found. ...Read more

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Do you typically need an injection when they are doing a CT scan?

Do you typically need an injection when they are doing a CT scan?

Often: When getting a ct scan it is often necessary to give a contrast injection. This helps in the detection of infection and tumors and to delineate vessels. ...Read more

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Would a brain MRI with and without contrast show problems with sinuses(cyst or tumors)or do they have to order MRI specifically for the sinuses?

Would a brain MRI with and without contrast show problems with sinuses(cyst or tumors)or do they have to order MRI specifically for the sinuses?

Sinuses: when you have a head scan either CT or MRI the radiologist will sometimes comment on sinuses. However, to take a complete look at the sinuses usually need a scan ordered specifically for that. ...Read more

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How will a neurologist know if you had a TIA or not? What are the key things that stand out as a tia? Do they show up on a CT scan or an mri?

How will a neurologist know if you had a TIA or not? What are the key things that stand out as a tia? Do they show up on a CT scan or an mri?

History: Tia symptoms are short lived, minutes to hours and should completely resolve in 24 hours. At your age ct and MRI are done to exclude tumor or bleeding. Other conditions that could be present would include migraine which usually has a more gradual presentation than tia. ...Read more

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Can MRI detect tumors(benign/malignant)? The MRI only shws a lesion but do not knw if its benign. Is it necessary to do a PET scan to find out more?

Can MRI detect tumors(benign/malignant)? The MRI only shws a lesion but do not knw if its benign. Is it necessary to do a PET scan to find out more?

Yes: The MRI is an effective way of defining a tumor. The histologic diagnosis is suspected mostly by presence and possible involvement of adjacent tissue. When there is a question of trying to define the presence of a primary in the face of metastastic disease, the PET/CAT most often defines the presence of a Ca. ...Read more

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Can a full body MRI or CT scan identify all tumors so that biposies can be done before they have a chance to become malignant?

Not really : Some tumors are seen better on CT scan others on MRI, different techniques, radiation dose variation etc are needed for different parts of body and very small tumors can not be seen even on these tests. For total radiation exposure, cost etc , at least at present total body imaging is not the best screening method however it is used to find metastatic lesions in known cancer patients using PET etc ...Read more

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How do you diagnose mythensia gravis, a blood test can't do it?What are the definitive tests when MRI scans are refused to be studied properly by neuros

How do you diagnose mythensia gravis, a blood test can't do it?What are the definitive tests when MRI scans are refused to be studied properly by neuros

Multiple modes: Often multiple tests are used and needed to diagnose myasthenia gravis. If you are not satisfied with one doctor you may seek a second opinion, however, it multiple doctors provide the same or similar advice, you will need to look inside yourself. See this site for more info. http://www.mayoclinic.com/health/myasthenia-gravis/ds00375http://www.mayoclinic.com/health/myasthenia-gravis/ds00375. ...Read more

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Mri without contrast detect hemanginoma at t 2 ? Could they tell if it is a hemanginoma and not cancer?

Mri without contrast detect hemanginoma at t 2 ? Could they tell if it is a hemanginoma and not cancer?

Need more info: You need to get more information from your doc and radiologist. What is the size of the hemangioma? Definitive diagnosis is by biopsy. Level of certainty of MRI is best assessed by the interpreting physician. ...Read more

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What can I do about possible tumors or hernias or anything at all. A CT scan or mri?

Depends on: Anatomical location of investigation, and the type of tumor. Sometimes you need both. And these scans tell you about anatomical abnormalities, nothing about function. ...Read more

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Does a standard brain CT or MRI go down far enough to be able to see a chiari malformation if there was one?

Does a standard brain CT or MRI go down far enough to be able to see a chiari malformation if there was one?

Yes: Both scans routinely include the skull base and foramen magnum in order to diagnose a chiari malformation. An MRI is the better study to evaluate this possibilty. ...Read more

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Do CT scan/mri's when they check for tinnitus require contrast? Will they check all the vessels in my brain? Or is it just normal mri?

Do CT scan/mri's when they check for tinnitus require contrast? Will they check all the vessels in my brain? Or is it just normal mri?

Contrast is expected: Brain scans (mri or ct) looking for tumors or aneurysms frequently use contrast. Since causes of tinnitus include these possibilities, i would anticipate the use of contrast. ...Read more

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I have a f/u chest+abdomen+pelvis CT w/contrast scheduled in 3mos. Will that routinely pick up abnormalities in breast & axillary lns if any? Do i need to tell radiologist about unilateral tender lns?

I have a f/u chest+abdomen+pelvis CT w/contrast scheduled in 3mos. Will that routinely pick up abnormalities in breast & axillary lns if any? Do i need to tell radiologist about unilateral tender lns?

Tell radiologist: You want to be sure they cover the areas involved. Not clear what you are following up, but if you have tender lymph nodes you should also go back and see your doctor asap. Good luck, . ...Read more

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Do they inject you with a dye when you get a head CT scan?

It depends: What your doctor is looking for. Most head ct scans are done without dye. ...Read more

Dr. Stephen Scholand
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