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Neurologists In Ct
Not always: Brain CT scans without contrast do not always miss cerebellar tumors. A tumor whose density is different from that of its adjacent brain tissue, or whose size is such that it pushes away adjacent brain tissue (distorting the normal shapes and outlines) will likely be visible even on noncontrast scans. ...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
Yes: yes, definitely.Get a more detailed answer ›
Tumor extent: Brain MRIs give much better soft tissue detail compared to CT. It can show the extent (size and spread) of brain tumors better. CT is better for acute bleeding in the brain and also evaluation of the bony skull. ...Read more
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)
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 moreSee 1 more doctor answer
Got13small inactive demyelinations in the brain.Neurologists said not ms-demyelinations disposed different.Is pet scan enough to confirm or infirm ms?
Why would a hospital do a second CT scan following a spinal tap? Are CT scans always of the brain?
Parasites: Ct scans detect changes in the brain substance that are produced by a variety of diseases. Sometimes the findings may suggest one illness over another, but they are never specifically diagnostic. Thing like cysticerus, toxoplasmosis, and others are very likely but must be proven by other techniques. ...Read more
My mother's brain MRI shows hyperintense focus in t2w1/flair images in cerebellar vermis.Impression: ischemic focus in the cerebellar vermis.Explain.
Look at entire study: T2 and flair signal can be evidence of an "ischemic focus, " otherwise a stroke. However, other things could be in the mix, such as a tumor or demyelinating process. The radiologist will have looked at the other sequences. Sometimes, however, it can be tough to tell. ...Read more
My dr has ordered a spect scan of brain at columbia, i'd like an fmri instead.Can any dr order fmri?
FMRI: Any licensed physician may order an fmri. Unfortunately, insurance pre-certification can be difficult to obtain, even in cases where a more expensive examination is very useful or even necessary. If you are having trouble with precertification, notify your company's benefits manager of your difficulty. ...Read moreSee 1 more doctor answer
I had a MRI and a CT scan both contrast. Info on both are different, lymph nodes in abdominal show in CT scan but normal in mri. Which is more realiab?
Which is better at evaluating complex renal cysts in children - CT scan or mri? Is the bosniak scale used in children?
Reasonable F/U...: Either one should be sufficient for evaluation after suspecting cystic lesion in kidneys of children, which can be categorized with bosniak system. After that, no further ct or MRI is needed but annual renal us in 1 yr for 1-2 times. If stable and asymptomatic with normal us, further study is usually unnecessary. Of course, beware of unwanted radiation to the children. ...Read more
Diagnostic imaging in 2009: update on evidence-based practice of pediatric imaging. What is the role of imaging in sinusitis?
Complicated but: Imaging indicated in sinusitis for chronic infections (>90 days), recurrent infections, concern for complications of sinusitis (e.g. Periorbital cellulitis, brain abscess), or preoperatively before sinus surgery. Ct scans are almost always done, but mris are helpful for intracranial or orbital extension. Threshold to image is higher in pediatric population in order to avoid unnecessary radiation. ...Read more