Doctor insights on:
How Many Ct Scans Are Safe In Q Year
None or a lot: The question is less about how many are safe and more about the question you're trying to answer. If you've been in a major car accident and are bleeding to death, 10 cts are very safe. If you are just curious to see your insides, none are safe. It is a decision of the risk of the scan versus the benefit of the information gained. It should be discussed with your md ordering the exam. ...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
How much CT and pet scans are safe in one year from radiation exposure on 59 yea old woman diagnosis lung nodules. One more year to go for monitoring
Check with your ---: Radiologist as they would be give you precise information about the dose of radiation one gets with each scan. Call your hospital's x ray dept and they can put in touch with him/her. Good luck. ...Read more
Many radiation tests years ago. Lots of CT scans and x-rays and VQ scans, etc. Worried will get radiation sickness if i get another test in future?
See: Radiation physicist at your hospital to calculate your received dose. Then you will have better idea of future risks. ...Read more
I know CT scanners come in 64,128,256,320 & 640 slice models. Can they all perform LDCT scan of chest? Is there a difference in radiation output?
Yes, they can: all do it. With LDCT protocol, radiation exposure should be comparable. ...Read more
About Contrast Media for MRI. Is it dangerous for the body? Is it safe to have contrast media many time in one year? I know my kidneys are ok.
MRI safe: MRI contrast is not a problem/risk to normally functioning kidneys ( determined by lab tests for creatinine clearance) . Of course , you don't want too much of a good thing ....so you need to consult with your doctor before any medical test is performed to understand the risks/benefits/options of any procedure. ...Read more
Is a CT scan dangerous to a 23 year old, (abdominal) virtual colonoscopy? How many standard x-rays equivelant roughly ?
Does have some risks: Ct scans do expose you to a modest dose of radiation which is not harmful if you have good indications for doing this test and there is no better alternative. Virtual colonoscopy is not yet proven to replace standard colonoscopy. Moreover it is recommended only for over 50 years of age. Since you are 23 year old, you have to have a good reason to have virtual colonoscopy instead of regular exams. ...Read moreSee 1 more doctor answer
Liver lesions can have different measrmnts in CT vs US, where CT is more acurate.Can measurements also be differece between CT and MRI?
Yes and no.: The lesion could still be the same size, but the reported measurements can differ because of slight differences in the manual placement of the measurement calipers, as well as potentially measuring the lesion in different planes. ...Read more
What are the best imaging tests to use for pelvic and abdominal cancers in a 60 year old? Why is MRI not used in mammogram?
For : abdomen/pelvic malignancies, CT is most commonly used, with MRI and PET/CT also utilized in certain circumstances. MRI is used for breast screening in special situations, but it is not an ideal screening test for the general population because it is time consuming, expensive, requires IV injection, and is not uniformly and readily accessible. ...Read moreSee 1 more doctor answer
Are CT scans with oral contrast useless for see colon cancer. My doc has ordered multiple over last 3 years, all clean, but hearing they are useless??
Ct: They are helpful but you need to have a colonosopy if there there is a concern ...Read more
How many pnl surgeries are performed each year in the us and how many pnl's have complications each year?
Is an abdominal ct scan with & without contrast considered multiple scans or just one. Meaning is it more radiation, and how many scans are performed?
One scan: That is one scan. No worries about excess radiation exposure unless a patient needs serial scans, such as to monitor the abdomen every few months for many years after cancer treatment. In real life, having a few CT scans makes no difference compared to the total radiation one receives merely by living on planet Earth. ...Read more
Monitored one year so far lungnodules with pet and CT scans. Sofar so good. Concern is the CT scan radiation for this second year that will be checke?
How many days will it take that marijuana and cigarette not be founded in ct scan for head, the reason for the ct scan is b/c of headache(migraine)?
2 risky habits: You cigarette habit may cause white matter lesions in the brain, which will not disappear, but marijuana does not seem to cause this, but in adolescents there is a lingering question of some degree of brain atrophy. Actually, migraine headaches, in some, may respond to cannabinoids. Let your doctor know about these 2 habits. ...Read moreSee 1 more doctor answer
How do non contrast CT scans detect strokes? I was wondering how non contrast CT scans help diagnose strokes, since the non contrast would means that the parts of the brain with and without blood would all look the same, right?
A screening test: The earliest sign of a stoke on a ct scan is edema or swelling of the part of the brain that had the stroke. It may take several hours for this to show up on a ct scan, but ct scans are widely available 24/7, while MRI may not be. Ct can will show if the stroke is hemorrhagic, which will mean that treating the stroke with tpa (alteplase) is contraindicated. ...Read moreSee 2 more doctor answers
I've had about 8 CT scans in the past 2 years. Neurologist wants to do a mri. How safe is a mri? Worried of radiation .
I suffered of anxiety during a brain MRI evaluation , and it can not be completed. What others procedures (b.Map, CT scan) are useful for the brain?
Options: It is not uncommon for patients undergoing MRI scans to feel claustrophobic and have to end the test prematurely. If the information needed is important to make a diagnosis or determine treatment, you can try having the procedure with an open mri. Alternatively, if your doctor needs the clarity of the regular MRI images, you may benefit from mild anti-anxiety medications taken before the scan. ...Read moreSee 1 more doctor answer
What I have if all exams for ms, including 2 lumbar puncture , are normal.. Except the MRI shows multiple lesions in my sp. Cord and one in brain?
Probable MS: It is likely that the burden of disease is mostly in the cord, but this description alone may well fit most of the mcdonald criteria. Best way to confirm is to get updated mri's with gadolinium. If any area lights up or a new lesion occurs, you have ms, and need treatment. Would urge you see an ms expert at a nearby medical school. ...Read moreSee 1 more doctor answer
How reliable is a ab CT scan for colon cancer? Had 3, what percentage of cancers are missed in a CT scan? Trying to find stats.
May be: Ct scans are done to further evaluate the illness, when no other better measure is available and knowing the problem will allow a timely management and prevent the complication. Ct scans carry several times more radiation exposure than the ordinary x rays. But for certain illnesses properly done ct gives a timely information. Parent should keep record of it to avoid unnacessary duplications. ...Read more
Depends: Radiation received from pet ct is relatively high compared to other imaging tests. Pet ct is mainly used for demonstrating metastatic disease, making decisions about effect of therapy, and looking for recurrence.Pet ct has helped prolong life because it can detect small lesions not seen by other tests. Wise decision should be made judging radiation risk versus positive benefit to the patient. ...Read moreSee 3 more doctor answers
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