Doctor insights on:
Shaken Baby Syndrome Ct Scan Of Brain
No: The x ray radiation in a CT has no measurable or known effect on neural tissues. 1) dose is way too low and 2) nerves are relatively radioresistant since the cells don't reproduce very fast, if at all. There is a theoretical risk of cataracts and cancer years later, but this is incredibly small esp. for a single scan and controversial anyway. ...Read moreSee 1 more doctor answer
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
Also, very fast!: Agree with excellent answer above. Additionally, ct scans have the advantage of being much faster than MRI scans, and they are much more widely available- if you come into a small hospital's er at 3 in the morning, they will likely be able to do a ct immediately, while an MRI might wait until the next morning (if it is available at all!). ...Read moreSee 3 more doctor answers
Depends: If done without contrast, it could be missed. If the tumor is in the posterior fossa (back of brain or brainstem) could be missed. With a ct scan, the bones in the back of the head commonly cause artifact and a mass could be missed. If there is a concern, then a MRI with gadolinium should be performed. But a ct scan with contrast is a good study. Hope this helps. ...Read more
Yes, it can: Did you go to an ER with H/A & they did a knee-jerk don't-sue-us CT scan which was normal? If you've had H/As for at least 3 years, the chances of finding a tumor on brain imaging are no greater than for someone with no history of H/A. Are your headaches of recent onset, relentless & worsening? If not, you can find something else to worry about, like the outcome of the 2016 presidential election. ...Read moreSee 1 more doctor answer
Nope: Sometimes you can see evedence of bleeding. With traumatic brain injury sufficient to cause changes on ct typically survival is markedly reduced. Certain types of MRI done at the right time following a brain injury can sometimes show evidence of cerebral contusion. Much of the damage done with traumatic brain injury is microscopic (too small even with diffuse axonal injury) to be seen on mri. ...Read more
Having MRI to check pituitary tumor growth.Had coiling of aneurysm 3 months ago.Worried the coils could move because of vibration of the scan?Thanks.
Check with neurosurg: The concern with mris and aneurysm coils is whether or not they have MRI compatible metal. Generally, the coils that are currently used (at least in the United States) are all MRI compatible. You should check with your neuro-interventionalist or neurosurgeon who placed the coils. Generally the vibration of the MRI is not enough to move the coils. ...Read moreSee 1 more doctor answer
Not exactly: A ct is by definition 'radiation', since it is a series of xrays computer reconstructed as sliced pictures of body tissues. It doesn't cause radiation but exposes the person to radiation. Modern ones may expose one to an amount similar to a transcontinental flight over the usa. Repeat exposure is a current topic of concern, but no specific learning disorder has been identified as connected to this. ...Read moreSee 1 more doctor answer
Unknown: CT of the brain does deliver radiation but the likelihood of developing malignancy from one or two studies is unknown. One must weigh the benefit to be gained from the study against whatever risk may be present. Careful selection of patients, particularly children is important when considering imaging. Thanks for trusting HealthTap! ...Read moreSee 1 more doctor answer
USUALLY NOT: Since aneurysms are a 'defect' in the arterial system --they can really only be seen with a contrast ct study (angiogram) or a mra (mri-angiogram). One time i did have a patient with a leaking brain aneurysm which the effects of which were barely visible on ct but confirmed on mra--and she made it! ...Read moreSee 2 more doctor answers
MRI more accurate: Neuroimaging techniques can add valuable information (MRI) shows characteristic patterns depending on severity of the injury and also timing of imaging. Degree of edema and brain swelling is better seen by MRI than by computer tomography, therefore CT scans are not widely used for early outcome prediction. ...Read moreSee 2 more doctor answers
Maybe: L'hermitte-Duclos disease is a very condition that is not cancerous by itself. Since the majority involve the cerebellum, that is not a strong point for CT imaging because of the bones. They get in the way. Under certain conditions it may be visible. MRI is now a days the way to go. ...Read more
Could an unsheilded CT scan and multiple x-rays at 5 weeks gestation result in any of the problems wih my son? (autism, pvl, dysplastic kidney, silent aspiration, preauricular pit, heart murmur)
Some things: CT scan of brain without contrast shows basic anatomy of brain, gray white matter differentiation, ventricles, and physiologic calcifications.Ventricles enlarged/ hydrocephalus, mass effect with displacement of normal structures, some bleeding,abnormal calcifications in tumors or old subdural hematomas, fractures.CT with contrast adds enhancement of certain lesions not seen,hyper/hypo vascular. ...Read more
What are the symptoms of transverse myelitis? I've had s negative brain MRI and cervical/spinal ct .
How much radio activity causes cancer bc I have had several ct, scans MRI eegs pet scans a EKG and a heart echogram plus 3 brain resections?
Alot: Not enough space for the best answer, but this same question was asked a year or so ago on the web, and the best answer can be found at the following link: http://answers.Yahoo.Com/question/index?Qid=20120922043341aa2koio ...And do not forget, mri's, eegs, ultrasounds, and ekg's have no radiation. ...Read moreSee 1 more doctor answer
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