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Doctor insights on: Ct Scan Of Lumbar Spine

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Will a CT scan of the lumbar spine post fusion without contrast show pinched nerves or just bone structure and hardware?

Will a CT scan of the lumbar spine post fusion without contrast show pinched nerves or just bone structure and hardware?

Limitations: No, a better view of nerve compression will be available if MRI is chosen, but the CAT does reveal nice images of fusion integrity, and surrounding vertebral bodies and foramina. ...Read more

Dr. Creighton Wright
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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Ordered CT scan brain MRI for lumbar spine after fall stairs lft leg has been numb 3yr prior to stairs spine not bad brain chronic microvascular ishemic white matter disease ms? Autoimmune?

Ordered CT scan brain  MRI for  lumbar spine after fall stairs lft leg has been numb 3yr prior to stairs spine not bad brain chronic microvascular ishemic  white matter disease ms? Autoimmune?

Ischemic Brain: Not likely. At your age, the vascualr ischemia is more apt to be due to chronic high blood pressure or diabetes. It is important to follow up on this with your doctor to avoid small lesions called "lacunar" infarcts. Often, medication can be prescribed which will improve your micro vascualr integrity and avoid further damage. ...Read more

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If spine dr says my lumbar spine looks normal on CT scan, is a cortisone shot still benificial for true sciatica pain?

If spine dr says my lumbar spine looks normal on CT scan, is a cortisone shot still benificial for true sciatica pain?

CT scans: are typically not very useful in determining any main issues in the spine. you need an MRI to really determine what is awry in you causing your sciatica pain. If there is pathology the MRI will show it. Then and only then can you be sure an epidural may help you. ...Read more

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I had a fusion L3-S1 in Dec. my nerve pain came back & is worse & my lumbar spine pops. My PCP ordered a ct scan w/o contrast.What could be going on??

I had a fusion L3-S1 in Dec. my nerve pain came back & is worse & my lumbar spine pops. My PCP ordered a ct scan w/o contrast.What could be going on??

Need follow up: Looks like surgical complication fom your recent surgery. Ask your PCP re benefit CT vs MRI but surgeons like to do their own imaging if they need to intervene, for which you should schedule a follow up with them ASAP. Feel better! ...Read more

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Had an adnominal/pelvis ct scan, a chest X-ray, and a lumbar spine X-ray all within a year. Does this significantly increase my cancer risk??

Had an adnominal/pelvis ct scan, a chest X-ray, and a lumbar spine X-ray all within a year. Does this significantly increase my cancer risk??

No: The radiation exposure form these studies is not likely to measurably increase your risk of cancer. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. ...Read more

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I am scheduled to have a ct-myelogram w/contrast. I had a reaction to the contrast material previously. I had a prior reaction. I have a charite artificial disc in my lumbar spine. I have a spinal fusion above and below the disc. L3-l4 are fused with the

"Contrast" : "contrast" is a preparation that is used in medical imaging to increase the visual difference between similar or adjacent tissues. Contrast can be as simple as frothy salt solution, which is useful in some ultrasound studies, or much more complex, such as the gadolinium-containing molecules used for contrast in MRI studies. Ct contrast contains iodine, an element whose properties block x-rays that are used in the ct scanner. Common benign responses to iodine-containing contrast includes flushing (a pretty noticeable sense of warmth) and a metallic taste in the mouth. More profound responses include itching, hives, and swelling in the throat. These are called "anaphylactoid" reactions. The risk of anaphylactoid reactions can be reduced with medications like Diphenhydramine and corticosteroids. These sorts of reactions are common enough that radiologists and radiology technicians can spot them quickly, and all ct scanning suites are equipped to deal with them. Seafood and topical iodine allergies are not predictors of who will develop an anaphylactoid reaction to ct contrast (although this is a widely-held erroneous belief). Another response to ct contrast is kidney injury. The risk of kidney injury might be reduced by things including avoiding certain medications and keeping well-hydrated prior to the procedure. Concerns regarding reactions to ct contrast are valid, and should be addressed with the physician who orders the test as well as the physician who is responsible for performing the test. ...Read more

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I did an MRI scan on my lumbar spine and report said 'two non significant disc bulges'. What does that means?

I did an MRI scan on my lumbar spine and report said 'two non significant disc bulges'. What does that means?

Non-significant: This usually will mean that there is bulging of the lumbar disks, but you should not have and clinical symptoms as its very small. In other words, its not pressing on anything. ...Read more

Dr. Michael Korona
1,787 doctors shared insights

Ct Scan (Definition)

Ct scan uses data from a beam of xrays and reconstructs a cross sectional image of your body. It is a high dose of xrays and used only when the benefits outweigh the risk. Cancer risk is 1 in 500 in children. Also using iodinated contrast might cause transient renal failure in about 5% of patients. (contrast induced nepropathy) most do not explain this to the patient as ...Read more


Dr. Brad Goldenberg
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Lumbar (Definition)

The lumbar part of the spine is the low back. It is made up of five bones (most of the time) stacked one on top of the other. They are connected by disks, facet joints, and ligaments. These soft parts allow for movement controlled by the spinal muscles; the muscles can also keep it stiff when need be. The lumbar spine also contains and protects nerves to ...Read more