Doctor insights on:
Abdominal Ct Scan Without Contrast
I just had to have 2 abdominal CT scans without contrast in 48 hrs.Will i get radiation poisoning?
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
Can an abdominal CT scan with and without contrast detect micronodular adrenal adenomas? What's the false negative possibilities?
Adrenal adenomas: With most gland problems, first figure out if the hormones are elevated. If so, THEN go looking for the tumor. This is because all glands form nodules, but these nodules often have no consequence. If you have a hormone elevation (Cushings, pheo, aldosteronoma) and the source is the adrenal, the CT will almost always find it. But this is complicated. See your Endocrinologist. ...Read more
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
Does an abdominal CT scan with and without contrast have the same amount of radiation as two CT scans?
Yes: The ct scan will consist of at least 3 parts. A very low dose scan to show the anatomy and allow for planning of the full ct scan. The next scan is the "real" scan without contrast. Then there will be at least 1 scan with contrast, usually when the veins are most opacified, at about 70 seconds after the start of the injection. However, some contrast scans have multiple phases for some anatomy. ...Read moreSee 1 more doctor answer
Several things: Can be seen on ct scan. The oral contrast helps deliniate some of the intestinal findings. Other organs are also seen such as liver, pancreas, gallbladder, aorta, lymph nodes, kidneys, urinary bladder, uterus or prostate, vertebral column, etc. Some structures are seen better than others. ...Read moreSee 1 more doctor answer
What is the likelihood that I could die from oral and IV contrast for an abdominal CT scan. I'm terrified and I don't know why. Please help.
Discuss with doc: These dyes have had enormous clinical use and rarely cause any problems. The only risk is ultra rare sensitivity which usually occurs in those who have had exposure to these in the past. Discuss with your doctor who will be administering these to you to put you at ease. You might need some pre-test anti-anxiety medication. ...Read more
Possibly: An abdominal CT examines the abdomen from the belly button up to the bottom of the chest. A pelvic CT examines the body from the belly button to the bottom of the pelvis. The test for the 'abdomen' is generally ordered as CT of the abdomen and pelvis with and /or without contrast. A CT of the abdomen and pelvis should detect a hernia. Sometimes an ultrasound is ordered in addition to and/or instea ...Read moreSee 1 more doctor answer
Not really!: The CT will show spasm or edema ( swelling of the bowel wall) but you need something such as endoscopic studies to rule out any inflammatory disease which is a serious health issue, unlike that of irritable bowel which is also painful but not progress in most cases. ...Read moreSee 1 more doctor answer
Too long to list: Ct scan is a form of x-ray in which the radiation source & detectors rotate around the patient as she moves through the plane of the beam. As with all x-rays, it measures different density to the radiation, but the computer takes the raw data and reconstructs cross sectional images like slices of bread. While still limited to differences in density, it can resolve to a few millimeters. ...Read moreSee 1 more doctor answer
Fast and drink prep: You will be asked to fast for several hours beforehand. Then, you will probably be given some flavored contrast to drink, which is a type of dye to make the scans show more detail. You may also need to have an IV inserted to get IV contrast. The exact details will vary based on why the scan was ordered. The radiology department will give you exact instructions for your particular test. ...Read more
See: Radiologyinfo.Org for good info.Get a more detailed answer ›
Tri-phasic CT: Tri-phasic ct scans are used to evaluate the structure, the blood vessels and the nature of the organs. The three phases are: 1) before the intravenous contrast is given; 2) the arterial phase, when the dye is given rapidly as an injection, the effect is that it goes to the heart as a bolus and then to the aorta as a bolus, like an arteriogram; 3) the venous phase or equilibration phase. ...Read more
How risky is an abdominal CT scan for a 34 year old male? Starting to get nervous after reading a lot of material online.
Depends: On why the ct scan is being done. Do not know if you mean drinking fluids like water & juice which are fine right after the radiology study is completed unless there are concerns of bowel obstruction. If you mean drinking alcohol then that depends mostly on why the ct scan was being done. Ask the radiologist or your doctor ordering the study. ...Read more
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
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