Top
40
Doctor insights on: Ct Scan With Contrast Vs Without Contrast

Share
1

1
What exactly does CT scan with contrast show?

What exactly does CT scan with contrast show?

Read more about it: To learn more about ct scans with contrast and what they show, please check out:
http://www. Conciergeradiologist. Com/ct-scan-with-contrast. Html. ...Read more

Dr. Sewa Legha
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 I take my propranolol right after having a CT scan with contrast?

Can I take my propranolol right after having a CT scan with contrast?

Yes,: You can take your medication after the CT scan. The CT contrast will not affect it. ...Read more

3

3
How common is it to have a CT scan with contrast and not find an appendix?

How common is it to have a CT scan with contrast and not find an appendix?

Uncommon: People that have appendicitis are more frequently having CT scans to dx this problem. It is not common to not find an appendix especially if there is one present. There are people that are born without appendix but is rare. ...Read more

4

4
Can a CT scan with contrast cause a headache 30 minutes after it is performed?

Can a CT scan with contrast cause a headache 30 minutes after it is performed?

Headache: Headache has been described as an uncommon delayed adverse reaction to IV contrast, so it is possible. ...Read more

5

5
Could a CT scan with contrast affect a estrogen test the following day? Could it cause it to be low

Could a CT scan with contrast affect a estrogen test the following day? Could it cause it to be low

Not likely: Estrogen levels fluctuate depending on where you are in your menstrual cycle. If your estrogen was very low (in the menopausal range) your fsh level should generally be high. If your fsh was not checked, or it was checked and was nomal, I would just consider asking to have your estrogen level retested. ...Read more

6

6
My sister went for a CT scan with contrast and because her creatine was too high they couldn't do it. WHY???

My sister went for a CT scan with contrast and because her creatine was too high they couldn't do it. WHY???

Contrast and kidneys: The contrast agent used in CT scans can damage the kidneys. If the creatinine is already high then there is more risk. If her creatinine goes back to normal then she may be able to get the test or they may change to an MRI. ...Read more

7

7
Is it rare to have to take a second CT scan with contrast because the contrast did not reach the lower left quadrant?

Is it rare to have to take a second CT scan with contrast because the contrast did not reach the lower left quadrant?

This is common.: When you drink contrast for a CT scan, it may take a long time for your intestines to get the contrast from the stomach to the rectum. Typically, CT scans are done 1 hour after you've begun drinking. This can be enough time to fill most of the bowel, but not all of it. Radiologist may request a 2nd scan if there is some question about the colon that wasn't answered on the 1st scan. ...Read more

8

8
I just had a CT scan with contrast about 3 hours ago. I already had 75 oz of water since the scan... Is this too much?

?: Not sure what your concern is. Did you drink the water or yuo refer to the amount of urine you had since. If your kidney function ois normal you should not have to worry. ...Read more

9

9
I have a CT scan with contrast they told me not to eat or drink 4 hours before. But I forgot and I ate. What will happen?

I have a CT scan with contrast they told me not to eat or drink 4 hours before. But I forgot and I ate. What will happen?

Likely nothing: The old protocols for a ct scan with contrast stated that there should be nothing by mouth 4 hours prior to the study. The rationale was to prevent vomiting thought to be caused by the intravenous contrast. The contrast agents currently used have very little likelihood of causing vomiting, so most centers will now allow you to drink clear liquids prior to the study. Still best to avoid solids. ...Read more

11

11
How long doez it take for results of CT scan with contrast. I had it Friday am. No results so far. Saw something on liver?

Commonly: It may take several days for an imaging study to be read, if it was ordered "STAT". In many cases, a study completed on Friday, particular if completed late in the day won't be read until sometime on Monday. If you are worried, please consider contact your the ordering physician's office in regards to the results. Best of luck. ...Read more

12

12
I have a CT scan with contrast and I was not supposed to take metformin for 48 hours but I accidentally took 1 yesterday morning will I be okay?

I have a CT scan with contrast and I was not supposed to take metformin for 48 hours but I accidentally took 1 yesterday morning will I be okay?

Likely - see ans.: You likely will be fine – that said, the theoretical concern is that iodinated contrast could impair renal function and therefore you could not appropriately excrete the meformin /metabolites causing an extremely unusual condition of lactic acidosis.
The american college of radiology recommends the following based on your clinical category (you should discuss with your dr.):
category I
in patient. ...Read more

13

13
Just had a CT scan with contrast dye for my shoulder two day ago, since then I m getting pains on my left and right lower side that comes and goes?

Likely unrelated: Ask your doctor to check your kidney function if you need reassurance. The contrast material used for ct is quite safe but may in rare instances affect the kidneys, more commonly in diabetic patients. Most radiology facilities screen patients prior to the exam to insure the safety of using the contrast media. ...Read more

14

14
Will a ct scan with contrast show phlegm or if you have a headache?

Will a ct scan with contrast show phlegm or if you have a headache?

CT will show mucus: In your sinuses if it's there, as in a sinusitis infection. It is not good at showing phlegm in your throat, however. If you cough up phlegm, then you have phlegm! ;-) CT can show some serious reasons for headache such as bleeding or tumor, but most people with headache have a completely normal head CT. We can only see disease, not the headache itself. ...Read more

15

15
Hrs after a CT scan with contrast medium I developed a body rash. How long can this last.?

Hrs after a CT scan with contrast medium I developed a body rash. How long can this last.?

This is a contrast: Reaction. Notify your doctor. Take Benadryl (diphenhydramine) as directed for the rash. Must tell the technologist or doctor before you ever get dye again or you can have a severe reaction. Will need to be premedicated if you are to get dye again. ...Read more

17

17
My dr. Has ordered a CT scan with contrast for the cervical and thoraicic area. Does this involve a spinal tap?

My dr. Has ordered a CT scan with contrast for the cervical and thoraicic area. Does this involve a spinal tap?

No: They will give you an IV contrast material; spinal taps are not usually a part of this procedure. Sometimes a ct myelogram will be performed by a neurosurgeon and they will inject into the spinal canal. If your not doing a myelogram then there is nothing worry about a spinal tap. ...Read more

18

18
I have multiple liver masses with hyper dense margins on CT scan with contrast. Is it possible that they are benign?

I have multiple liver masses with hyper dense margins on CT scan with contrast. Is it possible that they are benign?

Unlikely: Unfortunately Mr Johns, with multiple masses there is a high chance that this is not a benign process I'm afraid. An MRI with liver protocol (MRCP) or 2 phase contrast study may be necessary, as well as a biopsies to determine the etiology. I wish you luck!
SA ...Read more

19

19
How long after CT scan with contrast do I have to wait to drink alcohol?

Not sure: What portion of your body is beaing scanned, but there is no interaction between contrast and alcohol. Therefore, no interval is needed. Perhaps have a drink before to calm down and lie still. ...Read more

20

20
Can a CT scan with contrast and IV contrast show if a vaginal mesh sling is too tight or broken?

No: If your sling or mesh is too tight, then you will have issues with difficult urination, abnormal urination, and/or pain (most commonly). No imaging study can show how 'tight' a sling is. It is very difficult to properly visualize mesh products for defects with any imaging modality currently. The best evaluation is a proper history and thorough examination, and possibly urodynamic studies. ...Read more

21

21
Would it be wise to take Benadryl (diphenhydramine) 50mg before CT scan with contrast just incase of allergic reaction?

Would it be wise to take Benadryl (diphenhydramine) 50mg before CT scan with contrast just incase of allergic reaction?

Talk to radiologist: But it will not likely help to prevent a true anaphylactic reaction by itself although it will not hurt either. ...Read more

22

22
I am nursing but need at CT scan with contrast. How long do I need to pump and dump before it is safe to feed my baby again?

I am nursing but need at CT scan with contrast. How long do I need to pump and dump before it is safe to feed my baby again?

Safe: You should not need to pump-and-dump. Please see the following reference for reassurance:

<a href='http://radiology.Yale. Edu/patientcare/policies/breastfeeding.Aspx' rel='nofollow' target='_blank'>http://radiology. Yale. Edu/patientcare/policies/breastfeeding. Aspx</a>. ...Read more

26

26
Could you see abdominal adhesions with a CT scan with contrast and IV injection?

Could you see abdominal adhesions with a CT scan with contrast and IV injection?

Large: Adhesions are sometimes seen. Usually what is seen is the effect the adhesion is having on the intestine. Sometimes they are not detected until found at surgery. ...Read more

27

27
How much water do you need to drink and how quickly after a lung ct scan with contrast?

There: Is no particular urgency to quickly drink a lot of water right after a CT scan. Staying hydrated will help the kidneys eliminate the contrast, but if you are otherwise in good health, you can rehydrate at a comfortable pace. ...Read more

28

28
Can anyone of you drs give me a website link of a CT scan with contrast showing a brain tumor?

Can anyone of you drs give me a website link of a CT scan with contrast showing a brain tumor?

Johns Hopkins site: Http://www. Hopkinsmedicine. Org/neurology_neurosurgery/specialty_areas/brain_tumor/diagnosis/how-to-diagnose-brain-tumors. Html

and here's a nice scan of a tumor as well. ...Read more

29

29
Is there a lot of radiation associated with a CT scan with contrast for the renal area? Can the contrast cause an allergic reaction?

Is there a lot of radiation associated with a CT scan with contrast for the renal area? Can the contrast cause an allergic reaction?

No: CT of abdomen is a fairly routine test and not considered a radiation danger. Th incidence of allergic reaction to contrast is 1-3% with non-ionic agents and 4-12% with ionic contrast agents. Non-contrast agents are the type generally used today. The benefit from the diagnostic value of the test far exceeds the risk of these 2 issues. Hope this answers your question. ...Read more

30

30
I had a CT scan with contrast dye and a mrcp with contrast on the same day-- 4hours apart. Also, scheduled a CT guided biopsy 2 days later. Any issue?

I had a CT scan with contrast dye and a mrcp with contrast on the same day-- 4hours apart. Also, scheduled a CT guided biopsy 2 days later. Any issue?

Be followed: As long as you have normal renal (kidney) function and you are monitored closely and well hydrated, you should be fine. Best wishes. ...Read more

33

33
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

34

34
My doctor ordered a CT scan with contrast. I am on thyroid meds and worried about the dye/contrast. What can I do?

My doctor ordered a CT scan with contrast. I am on thyroid meds and worried about the dye/contrast. What can I do?

No worries: There is not a concern, if the ct is evaluating other parts of your body, including the neck. The contrast will not cause a problem with your thyroid or your medications. But, you don't want to do this type of ct scan, if your doctor later plans on evaluating the thyroid itself with a radioactive uptake nuclear medicine scan because it can interfere with that and skew the results. ...Read more

35

35
Hi dr! I want to ask. Is it possible that a kidney stones was seen in ultrasound but can't be seen in ct scan with contrast?

Yes, because: It had probably passed in the meantime. Small stones generally pass. Most important for you is to prevent recurrence of stones. ...Read more

36

36
Is a CT scan with contrast accurate for locating a blood clot in my chest? My results showed normal but my d dimer was elevated.

The sensitivity: Of CT (tailored for PE) for detecting PE is 80-90%. If the clinical probability of PE is high, and the CT is negative, further workup may be necessary. ...Read more

37

37
If MRCP & CT scan with contrast were clear of Pancreatic Cancer, what are chances EUS can find Pancreatic Cancer? Are odds on my side with clear MRCP?

If MRCP & CT scan with contrast were clear of Pancreatic Cancer, what are chances EUS can find Pancreatic Cancer? Are odds on my side with clear MRCP?

Pancreatic cancer: Was the CT tailored for pancreatic mass protocol? If so it is highly accurate for detecting even very small panc masses. If it was a routine CT, the accuracy is still high, but very small tumors may not be seen. MRCP is also not specifically tailored to look for panc mass, so very small lesions may not be seen. No test is 100%, so it is always possible that another test could pick something up. ...Read more

40

40
Would CT scan with contrast show abnormalities of the fillopian tubes? Like scarring or blockage. This was an abdominal scan.

Would CT scan with contrast show abnormalities of the fillopian tubes? Like scarring or blockage. This was an abdominal scan.

Unlikely: Ct with contrast could show a swollen/dilated tube (hydrosalpinx) and 'might' be helpful for suspecting an abnormal anatomic placement of a tube, but should not be considered reliable for evaluating tubal blockage or presence of adhesion (scar.) the hysterosalpingogram (hsg) is more useful for evaluating tubal blockage, and laparoscopy or laparotomy with tubal perfusion is the gold standard. ...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