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Doctor insights on: What Are The Advantages Or Disadvantages Of A Ct Scan Of The Head

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What are the advantages or disadvantages of a CT scan of the head?

What are the advantages or disadvantages of a CT scan of the head?

Fast and inexpensive: A ct of the head is extremely quick (less than a minute) and can rule out fracture, bleeding, and many other serious conditions. It is not as sensitive to pathology as an MRI (especially in the soft tissue), and does involve exposure to x-rays. ...Read more

Dr. Andrew Berry
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 does a CT scan of the head show?

What does a CT scan of the head show?

Major abnormalities: Ct is typically used in the acute setting to look for blood. It can also show major abnormalities such as masses and edema from large strokes. Ct is the best exam for looking at skull fractures and usually partially shows the bones of the sinuses and face. ...Read more

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How much does my cancer risk increase after a CT Scan of the head as a teenager?

How much does my cancer risk increase after a CT Scan of the head as a teenager?

Almost no risk: Please see: http://www. Scientificamerican. Com/article/how-much-ct-scans-increase-risk-cancer/
also:
1) CT head exposure is mostly confined to the head, not the whole body.
2) There may be cellular repair at doses as low as CT, limiting cancer rates. (We don't know how much).
3) Whatever the theoretical risk, there must be a good reason to do the CT in the first place. ...Read more

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Will a brain aneurysm show up on a plain CT scan of the head?

Will a brain aneurysm show up on a plain CT scan of the head?

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 more

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Is it possible for a CT scan of the head *without* contrast to show an unruptured brain aneurysm?

Is it possible for a CT scan of the head *without* contrast to show an unruptured brain aneurysm?

It is: Possible, but not probable. The aneurysm would have to be relatively large, and even then the noncontrast appearance may not be specific. ...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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Would an infection of mastoid/ temperol bone-posterior show on a CT scan of the head? Is it possible to mistake it for an old infarction?

Would an infection of mastoid/ temperol bone-posterior show on a CT scan of the head? Is it possible to mistake it for an old infarction?

Mastoiditis: Yes, ct head would show an infection of the mastoid and temporal bone. It is not possible to mistake this for an old infarction of the brain. The two are completely different on imaging. ...Read more

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What does CT scan of head without contrast show?

Many things.: It can detect many conditions. Ct is particulaly good at detecting bleeding in the acute setting and hydrocephalus, and some masses. It's not nearly as good as MRI for looking at small structures and white matter disease. Both ct and MRI are usually more sensetive and specific when contrast is given. ...Read more

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I'm getting a CT scan on my head next week. What to expect?

I'm getting a CT scan on my head next week. What to expect?

Pretty easy: As in the picture, you will lie on a table which will then slide you into and out of the scanner during the scan. The scanner loos kind of like a big donut. Not nearly as long and narrow as an MRI scanner. Depending on the scanyou may or may not have IV contrast injected during the scan. ...Read more

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Please tell me what can I expect from a CT scan on my head?

Please tell me what can I expect from a CT scan on my head?

Short exam: Ct of the head is a short exam and most commonly done without IV contrast to look for major abnormalities such as masses and edema from large strokes. Ct is the best exam in the acute setting to look for blood and skull fractures. ...Read more

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Ct scan of head but no results. Shouldn't they read it daily?

Ct scan of head but no results. Shouldn't they read it daily?

Yes: Generally scans are read within 24 hours. If it is a emergency ct it should be read immediately to rule out a stroke or bleed. The scan may have been read and sent to your doctor who has the results. ...Read more

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My nephew hit his head have reverent vomits. Is this a serious to get a CT scan?

My nephew hit his head have reverent vomits. Is this a serious to get a CT scan?

Yes: If vomiting persist a ct scan can help to see if there's a bleeding in the head. ...Read more

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What can be some causes of dull to sharp pains throughout the head? Had a normal CT scan.

What can be some causes of dull to sharp pains throughout the head? Had a normal CT scan.

Many possibilities: There are too many reasons for headaches to list here. Common causes based on your profile include 1) Chronic sinusitis, caused by allergies, intolerance to dairy and gluten, and smoking
2) excessive use of pain relievers, which can cause rebound daily headaches if taken regularly.
...Read more

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Ct scan after hitting head negative but I feel my balance is off and my eyesight seems worse. What next?

Ct scan after hitting head negative but I feel my balance is off and my eyesight seems worse. What next?

Hitting head: You probably had a mild concussion and you may have trouble with your balance and eyesight for a few weeks. Report this to your doctor. ...Read more

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Hello doctors, what does a CT scan of your head show?

Hello doctors, what does a CT scan of your head show?

Major abnormalities: Ct is typically used in the acute setting to look for blood. It can also show major abnormalities such as masses and edema from large strokes. Ct is the best exam for looking at skull fractures and usually partially shows the bones of the sinuses and face. ...Read more

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If doing a CT scan, does it include both chest and head?

If doing a CT scan, does it include both chest and head?

Depends: What region is scanned depends on why the scan is ordered. If the patient is unresponsive or in a trauma situation, the scan is often more widespread to include head and body. If a medical problem appears to be isolated to the chest or head, only that area is scanned. ...Read more

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I just had a CT scan of my head will this find all tumors?

I just had a CT scan of my head will this find all tumors?

Not ALL....: No ct scan (or mri, which is better for this) can detect everything. The results of any scan have to be put in the context of the symptoms that led to it being ordered. You doc will go over its findings with you and decide if you need additional tests. That being said, a good ct with contrast should see a good percentage of brain lesions. Best to you. ...Read more

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Hello doctors, what does a CT scan of your head feel like?

Depends on contrast: A ct of head with no contrast feels like nothing. It will take about 15-20 sec if that.
If one would need contrast then an IV would need to be started and then a non contrast ct done then the contrast one done. The contrast may cause flushing or warmth. Certain allergies may restrict you from getting this as well as kidney disorders. ...Read more

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Hello doctors, what does a CT scan of my head involve please?

See below.: Depends upon indication for exam, and whether contrast is indicated. Essentially you lie on your back with your head in the large opening while the ct takes images. If contrast is necessary, the study is repeated after the contrast injection. ...Read more

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I had a CT scan without contrast on my head. What will that tell docs?

Many things: A non-contrast ct is really done for acute scenarios - mostly in the er - to rule out acute bleeds, particuarly in patients with trauma or altered mental status. It's a quick test, but doesn't offer a ton of info. If not an urgent situation, a contrast enhanced ct or MRI are preferable as they give much more information. ...Read more

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My son has a concusion in her head. How to cure it. And should I do a CT scan to my son?

Concussion: A concussion is helped by rest. As far as a ct scan it depends. If he lost consciousness then a ct scan would be indicated, otherwise observation should be sufficient. ...Read more

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Medical experts please answer, question about CT scan results on head. What is septum cavum?

Fetal brain: Cavum septum pellucidi is a fluid-filled space less than 10 mm wide between the frontal horns of the lateral ventricles of the brain, and below the anterior portion of the corpus callosum (connects the two hemispheres of the brain). If it is not seen on fetal head ct between 18 and 37 weeks, midline malformations may be present, and a thorough exam of the fetal CNS should be done. ...Read more

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Normal CT scan. But constant agony crown of head and top of head. Unbearable. Nothing helps. 2 weeks. What could this be?

Tension headache: Most headaches cannot be diagnosed by CT scan or MRI or any imaging test. Talking to a neurologist will usually provide faster diagnosis & treament options (neither of which a scan provides). From your description, it sounds like a tension headache; however, further description is required. Use HealthTap Prime if a neurologist isn't availablle nearby. Good luck ;& good health. ...Read more

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I have head dizziness but no spinning. Ct scan was normal?

I have head dizziness but no spinning. Ct scan was normal?

Dizziness can: Be a symptom of cardiac, vascular, neurologic, or even pulmonary disease. It is best to work on this with your doctor, because some of these diseases could be serious. ...Read more

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Do I need to take all my clothes of for a CT scan of my head?

Do I need to take all my clothes of for a CT scan of my head?

Each center: May have its policies, but there is no need to remove your clothing for a head scan. Braces interfere, but you can't take them off as easily. If you want to know there policy, call ahead, and ask other centers. ...Read more

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What could a dark spot on the left temporal part of the head mean following a CT scan?

Skin lesion: CT scans do not cause burns or trauma to the skin. It may just be a coincidence. If it does not go away on its own or gets larger, see a dermatologist. ...Read more

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Non-stop pain on the left side of my head, sometimes feels like throbbing? Ct scan was normal. What could it be?

The CT needs to be: With contrast to look for subtle things, but the good news is that your horrific impossible pain is not likely to be a brain tumor, and you need a full neurologic w/u to assess migraine, cluster headache, and possibly spinal tap to rule out subtle bleed. ...Read more

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Nausea onset 2 days after hard head hit. Ct scan was clear 2 hours after hit. Should I be worried? Or is this normal?

Post concussion: You could be experiencing the effects of a concussion or post-concussion syndrome, so be sure to follow up with you doctor to treat your symptoms. ...Read more

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I have numbness on the top of my head. It comes and goes for two weeks, but more often now. No issues in CT scan, ca, mg, or b12.?

I have numbness on the top of my head. It comes and goes for two weeks, but more often now. No issues in CT scan, ca, mg, or b12.?

Any exposure to HZV?: I a healthy person these symptoms may be a result of an infection with hzv even if no blisters show up. Another cause is pulling of the aponeurosis between fronatlis corrugator muscles and the semispinalis capitis muscles. It would not be a bad idea to get a CBC and fbs. Ct will not show any thing, this is probable a benign condition prone to disappear by itself. ...Read more

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After falling on the back of head, does CT scan shows all possible kinds of damage? I mean if the CT scan shows nothing there's no problem?

Any Symptoms?: If you are asypmtomatic, no pain, dizziness, irritability, nausea, double vision, discoordination, memory issues, that are new since the injury then you should be ok. Ct scanning and mri's do not eliminate the possibility of concussion which is a clinical diagnosis, not a radiographic one. ...Read more

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Hit my head hard the other day. CT scan was negative;still have a headache 5 days later and don't quite feel like myself. Should I be worried?

Hit my head hard the other day. CT scan was negative;still have a headache 5 days later and don't quite feel like myself. Should I be worried?

Post concussion: Post concussion syndrome can be associated with persistent headache, dizziness, irritability, sleep problems and cognitive changes. The degree of symptomology depends on the extent of the original injury, and in the case of athletes, the number of prior injuries. Pain medications, anti-depressants, cognitive therapy can be helpful. It important to avoid re-injury, ...Read more

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My mom's head span and fell on the floor and hit her head. There's all normal in report of CT scan. What tests should she do to know d cause of spin?

My mom's head span and fell on the floor and hit her head. There's all normal in report of CT scan. What tests should she do to know d cause of spin?

Clinical evaluation: Her physician can evaluate her for signs of a nervous system or inner ear problem by a clinical exam. If abnormalities of balance or eye movement are found, further testing may be indicated. Vertigo (feeling of spinning) is very common. Most of the time it can be treated successfully. Thanks for trusting HealthTap! ...Read more

Dr. Michael Gabor
1,885 Doctors shared insights

Ct Scan (Definition)

Computed tomography (ct scan) or computed axial tomography (cat scan), is a medical imaging procedure that utilizes computer-processed x-rays to produce tomographic images or 'slices' of specific ...Read more