Top
30
Doctor insights on: Abdominal Ct Scan Without Contrast

Share
Dr. Jeffrey Satinover
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


2

2
Can an abdominal CT scan with and without contrast detect micronodular adrenal adenomas? What's the false negative possibilities?

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

3

3
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?

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

4

4
Does an abdominal CT scan with and without contrast have the same amount of radiation as two CT scans?

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 more

5

5
Abdominal CT scan with oral contrast. What will this show?

Abdominal CT scan with oral contrast. What will this show?

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 more

6

6
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

7

7
Can an abdominal CT scan with contrast see a hernea?

Can an abdominal CT scan with contrast see a hernea?

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 more

8

8
Can an abdominal CT scan w/contrast show IBS?

Can an abdominal CT scan w/contrast show IBS?

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 does not progress in most cases. ...Read more

9

9
What can an abdominal CT scan see?

What can an abdominal CT scan see?

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 more

10

10
What is an abdominal CT scan like?

What is an abdominal CT scan like?

See: Radiologyinfo. Org for good info about ct scans. ...Read more

11

11
How should I prepare for an abdominal CT scan?

How should I prepare for an abdominal CT scan?

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

12

12
Is no news good news with an abdominal CT scan?

Is no news good news with an abdominal CT scan?

May not be.: Please make sure work up of your problem continues if you are still having symptoms. No test is perfect. ...Read more

14

14
What can an abdominal CT scan pick up and see? Thnkss

What can an abdominal CT scan pick up and see? Thnkss

Best view of abdomen: The abdominal ct is the best quick view of the entire abdominal cavity. It provides a great picture of all organs and the abdominal wall, as well as the spine. This study can see everything from cancer to kidney stones to hernias to vertebral fractures to foreign bodies. Usually, you are given contrast which provides an even better view. Downside, radiation exposure similar to 400-500 x-rays. ...Read more

15

15
What happens during a three phase abdominal CT scan?

What happens during a three phase abdominal CT scan?

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

16

16
How risky is an abdominal CT scan for a 34 year old male? Starting to get nervous after reading a lot of material online.

How risky is an abdominal CT scan for a 34 year old male? Starting to get nervous after reading a lot of material online.

Very safe: Ct of abdomen is very safe, radiation exposure is negligible, if contrasts are used, only worry is reaction to contrast material. ...Read more

17

17
Does an abdominal CT scan show polyps?

Does an abdominal CT scan show polyps?

Sometimes: But not usually. Polyps are usually too small, and ct scan does not distend colon adequately. Best test for colon polyps is colonoscopy by gastroenterologist. ...Read more

19

19
Does an abdominal CT scan show your aorta?

Yes: The abdominal aorta will be shown on an abdominal ct. ...Read more

20

20
How long should you wait after an abdominal CT scan to drink?

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

21

21
I am so worried about my son because he has had two abdominal CT scan. One at 10 mSv at age 4 and the other at 6mSv two weeks ago and he is now eight.

Balance info vs risk: A CT scan can give valuable information regarding disease process but does carry its risk which increases the younger a person is and is dose related. Studies on people exposed to radiation are ongoing, and if total exposure is limited to the 16 mVs, then lifetime increase in cancer risk due to the radiation is still less than 1%. This is in addition to other genetic, disease and environment. ...Read more

22

22
My recent abdominal ct scan showed the possibility of a richter hernia, what does that mean?

My recent abdominal ct scan showed the possibility of a richter hernia, what does that mean?

Partial hernia: It means that part of the wall of the intestine is sticking out of the abdominal wall. It is a rare hernia but because only part of the bowel wall is involved, can be more dangerous mostly because it is diagnosed late. Have a surgeon check it out. ...Read more

23

23
Is a one-year-old abdominal CT scan that detected Nutcracker syndrome too old to look at for a second opinion?

Is a one-year-old abdominal CT scan that detected Nutcracker syndrome too old to look at for a second opinion?

Not too old: Second opinions can be given on any study. If your symptoms have gotten worse, then a newer study may show more disease, but the old study may still contribute some information to the diagnosis. You can contact me on my profile by pressing Send Message to start a consult. ...Read more

24

24
I recently had an abdominal ct scan. The report states that the bladder wall is mildly thickened. What does that mean?

I recently had an abdominal ct scan. The report states that the bladder wall is mildly thickened. What does that mean?

Probably nothing: What symptoms?
do you smoke?
Any family history of bladder cancer?
A lot more questions need to be answered before a doctor can give you a real answer. ...Read more

25

25
What does a cystoscopy show that a kub and/or abdominal CT scan wouldn't?

What does a cystoscopy show that a kub and/or abdominal CT scan wouldn't?

Indication 4 surgery: Cystoscope is a surgical procedure with risk. Before signing consent, have family with you to ask surgeon these questions. Understand your risk/benefit analysis. Typically the cystoscope allows views of the inside lining, not provided on ct and kub, with access to remove objects, place stent, take biopsy, make additional recommendations. Kub and ct may show obstruction, scope can correct. ...Read more

26

26
What can an abdominal CT scan with IV dye and barium sulfate solution find?

What can an abdominal CT scan with IV dye and barium sulfate solution find?

Many things: In general areas of abnormal growth such as a tumor or fluid cyst, or areas of swelling such as inflammation or infection. The intravenous contrast solution and swallowed barium help the radiologist identify and separate nearby structures and organs, and help to better visualize possible abnormalities. ...Read more

27

27
What can a small bowel follow-through show that an abdominal CT scan cannot?

What can a small bowel follow-through show that an abdominal CT scan cannot?

Transit time: This exam demonstrates the small bowel in detail and demonstrates the time it takes for the barium to get through the bowel. This test can also demonstrate anomalies, fistulas, leaks and blockages. ...Read more

28

28
Is there anything that can be mistaken for an accessory spleen in an abdominal CT scan?

Lucky you-you got 2: There is probably a long list of very rare things--but accessory (extra) spleens are not uncommon and most radiologists are comfortable is identifying them. Never know when an extra spleen might come in handy. ...Read more

29

29
Before my abdominal CT scan the technician gave me a big glass of water and said I shld drink and finish it up. What is that for? Thanks?

Before my abdominal CT scan the technician gave me a big glass of water and said I shld drink and finish it up. What is that for? Thanks?

Water as contrast: Ct uses contrast both positive and negative to assess mucosa of bowel. Positive contrast usually contains iodine or barium to be seen on ct. Negative contrast can use water to see mucosa. One glass of water would show the stomach well. For the small bowel multiple glasses of water have to be ingested beginiing hours before the ct, called ct enterography. ...Read more

30

30
I did an abdominal CT scan and one of the things it showed was degenerative bone changes. What can cause this in a young adult? I'm only 26.

Do not worry: Wear and tear on our bodies happens all of the time. The question that needs to be asked is: "are the degenerative changes unusual for the patient's age? "

current ct technology is capable of clearly showing structures 2 mm (a little bigger than 1/16 of an inch). We see many things which may not clinically significant, i.e., give the patient problems or cause pain. ...Read more

Dr. Michael Gabor
1,875 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


Dr. Michael Gabor
181 Doctors shared insights

Ct Of Abdomen (Definition)

An abdominal CT scan is an imaging method that uses x-rays to create cross-sectional pictures of the belly area. CT ...Read more