Top
30
Doctor insights on: What Are The Differences Between A Ct And A Ct Urogram

Share
1

1
What are the differences between a CT and a CT urogram?

What are the differences between a CT and a CT urogram?

Ct urogram: A urogram uses contrast so flow out thu the urinary system. ...Read more

Dr. Walter Husar
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
Had routine ct's with contrast and without, for kidney stones. Now they want to send me for a CT urogram. What is the difference?

Had routine ct's with contrast and without, for kidney stones. Now they want to send me for a CT urogram. What is the difference?

Contrast: A plain ct looks for stones. A ct urogram uses IV contrast (dye) to better evaluate the renal pelvis and ureter (the "tube" connecting your kidneys to your bladder). These structures are not well seen without contrast. A greater amount of contrast is used in a urogram than normal contrast ct to better fill these structures. ...Read more

3

3
What is the definition or description of: CT urogram?

What is the definition or description of: CT urogram?

CT to look at kidney: Ct done to look at kidney to replace the test called an ivp....Ct urogram is a better test.... ...Read more

4

4
How do a plain CT of the kidneyand bladder, and a CT urogram differ?

Contrast: A plain ct looks for stones. A ct urogram uses IV contrast (dye) to better evaluate the renal pelvis and ureter (the "tube" connecting your kidneys to your bladder). These structures are not well seen without contrast. ...Read more

5

5
Is peritoneal lymph nodes showing up on ct urogram a common finding?

Is peritoneal lymph nodes showing up on ct urogram a common finding?

Everyone has: Lymph nodes in that region, so yes, it is common. The question is whether they look abnormal/enlarged or not. Did the report provide any more details on the lymph nodes? ...Read more

6

6
Why doesn't a MRI show deflux material from a prior VUR and a CT Urogram does? I thought MRI's are more in depth?

Different tests: An MRI uses an atom's response to a strong magnetic field. A CT uses X-rays. The X-rays won't pass through the contrary, so it creates a shadow. No such effect occurs because of the magnetic field.
...Read more

7

7
I had a cystoscopy, the doctor said everything is normal but we will have CT urogram, if everything is normal why the CT urogram should be done?

Evaluate other areas: Cystoscopy and cystoureteroscopy are very good at looking at the inside of the bladder, ureters and renal collecting systems. Ct urogram looks there as well, but also evaluates the "outsides" (the parts that cannot be seen with a scope) of these structure and the other structures in the abdomen and pelvis. ...Read more

8

8
Will a CT Urogram show recent kidney infections or stones that passed?

Will a CT Urogram show recent kidney infections or stones that passed?

No: No, stones that passed out of the body are gone. It will show any remaining stones. There may temporarily be some residual signs of the obstruction caused by the stone, however. Also, if an infection has resolved, the CT might temporarily show some residual signs of the infection, but will otherwise be normal unless the infection resulted in scarring of the kidney. ...Read more

9

9
Would Deflux material which is injected under the L ureter where it enters the bladder show up on a CT urogram as a possible ureteral malignancy?

Would Deflux material which is injected under the L ureter where it enters the bladder show up on a CT urogram as a possible ureteral malignancy?

Can create confusion: On CT, Deflux is fluid density & occasionally can calcify creating confusion with ureterocele or distal ureteral stone at the bladder base ureterovesicular junction. If the ct urogram (workup for hematuria) interpreting radiologist is not aware of this pertinent history of prior injection, it may create some confusion in interpretatation. Make sure to Inform the radiologist about this history! ...Read more

10

10
How often does a "retroperitoneal attenuation" (found on CT urogram) turn out to be lymphoma? My dad is being tested for this. PET scan next. Worried.

How often does a "retroperitoneal attenuation" (found on CT urogram) turn out to be lymphoma? My dad is being tested for this. PET scan next. Worried.

Not often: Retro peritoneal attenuation is and unusual term on ct. CT is usually very good at detecting enlarged lymph nodes of lymphoma. And understand that not all lymphomas will be best seen with PET. Also not every positive PET CT is cancer. There are other disease entities that are positve on PET. Talk honestly with the doctor to wxplain the results ...Read more

11

11
Had report of adrenal hyperplasia on CT urogram. All labs BP, normal. No symptoms. Is this a normal variant? Male age 62 ideal body weight.

Had report of adrenal hyperplasia on CT urogram. All labs BP, normal. No symptoms. Is this a normal variant? Male age 62 ideal body weight.

Here are some...: Most likely, the reported finding on CT Urogram is merely incidental and carries no clinical importance. As a F/U for a peace of mind, repeating a CT in a year is reasonable. Of course, the most logical timing of F/U should be deduced by working closely with your treating doc since she/he surely knows more pertinent information about you. ...Read more

12

12
Am I at a higher risk I had an episide of gross hematuria saw 2 different uros all testing cam eback neg two cyystoscopies cytologues renal us CT urogram CT scan nothing was found to explain this. My question is am I now at a highher risk for possible bl

Am I at a higher risk I had an episide of gross hematuria saw 2 different uros all testing cam eback neg two cyystoscopies cytologues renal us CT urogram CT scan nothing was found to explain this. My question is am I now at a highher risk for possible bl

No: You have had all the necessary tests by 2 urologists and nothing was found. Most likely the hematuria was from your prostate. If there was bladder tumor or kidney tumor or renal pelvic tumor the studies you had would have been diagnostic. If hematuria recurs, go back to your urologist. It sounds like you are OK. ...Read more

13

13
On a recent urogram, it came back as 11mmx8 mm a ureteral malignancy can not be excluded. Could a prior uterine reflux procedure be the cause of this?

On a recent urogram, it came back as 11mmx8 mm a ureteral malignancy can not be excluded. Could a prior uterine reflux procedure be the cause of this?

Unlikely: The ureter runs from the kidney to the urinary bladder. It is not connected to the uterus. "Cannot exclude a malignancy" only means that there is an "indeterminate" abnormality, the radiologist is not sure what it is. Your doctor will probably want to look further into this, but it is not likely to be related to the reflux procedure. ...Read more

14

14
2cm bladder mass on ultrasound. Urogram done today. What could this be? Worried about cancer.

2cm bladder mass on ultrasound. Urogram done today. What could this be? Worried about cancer.

Bladder mass: Can represent cancer. It can also represent localized inflammation of the bladder wall. If the mass moves around it can represent a blood clot, fungus infection, or even a stone. Most masses seen on ultrasound are further evaluated by cystoscopy (scope in the bladder). ...Read more

15

15
I was recently diagnosed with mild hydronephrosis by an ultra sound. Scheduled to have avCT Urogram. How accurate was the ultra sound? I tested posit

I was recently diagnosed with mild hydronephrosis by an ultra sound. Scheduled to have avCT Urogram. How accurate was the ultra sound? I tested posit

Mild hydronephrosis: Usually requires no further investigation that follow-up US in 3 - 6 months, unless you have symptoms such as pain or suspected mass. Mild hydronephrosis, if found incidentally, has likely been there all your life & requires no treatment. CT urogram is very expensive & likely unnecessary unless a reputable specialist explains why it is. Many PCPs do not understand grades of hydronephrosis! ...Read more

16

16
What is the difference between a CT and a CT Angiogram?

What is the difference between a CT and a CT Angiogram?

Adding contrast: Computerized axial tomography CAT or CT is a form of x-ray imaging without using any dye or contrast. If the radiologist injects a dye or contrast to highlight the blood vessels during the procedure that would be CT angiogram. ...Read more

17

17
Cts versus mris? What is the difference between a CT and a mri?

Different technology: Ct uses ionizing radiation, like xray, to produce images of the inside of your body. Mri uses a very powerful magnet to produce similar images. Each technology has it's strengths. For example, MRI is better at detecting stroke, while ct is better at detecting appendicitis. ...Read more

18

18
What are the differences between a myelogram, mri, and ct?

A: CT myelogram requires an injection of contrast into the dural sac within the spinal canal. An MR "myelogram" attempts to simulate the myelogram effect with different MR pulse sequences, and does not require an injection. ...Read more

19

19
What are the differences between a traditional CT scanner and a spiral CT scanner?

Difficult to get: Into the physics of it here, but a "traditional" or single slice scanner requires a separate scan for each slice. A spiral ct or multislice scanner employs a single scan with multiple detectors to acquire the entire volume of of data in the region being scanned. The patient moves through the scanner as the tube scans/rotates around the patient hence the descriptor "spiral". ...Read more

20

20
What are the differences between a barium enema and a CT colonography?

What are the differences between a barium enema and a CT colonography?

CT colonoscopy: Is a CT scan with specific technical parameters. There is a bowel prep to clear out the colon, and a tube is placed into the rectum to fill the colon with air. A barium enema uses x-ray/fluoroscopy instead of CT. With a rectal tube, the colon is filled with barium and air, and the patient placed in different positions for viewing. Barium enema has been largely replaced by colonoscopy. ...Read more

21

21
What are the differences between pet scans, mri, ct, and bone/gallium scans?

What are the differences between pet scans, mri, ct, and bone/gallium scans?

Anatomy vs Physiolog: Mri and ct scans are typically looking at the anatomy of a patient, as well as differences in blood flow if contrast is administered.

Pet, bone and gallium scans are all looking at the function, or physiology of the patient, and the anatomy is of secondary concern. For example, pet scans are usually using f-18 fdg, a glucose analog, and display differences in glucose use, a main energy source. ...Read more

22

22
What are the differences between the "face" ct, brain ct, and "skull" ct? Don't they all show the same area?

What are the differences between the "face" ct, brain ct, and "skull" ct? Don't they all show the same area?

Similar: There are differences in the areas the different ct s focus on. Ct of the face focuses on orbits, sinuses etc, brain will show more details of different area of the brain and less detail of the bones of the face. ...Read more

23

23
Difference betwee bronscopy and CT with contrast?

Difference betwee bronscopy and CT with contrast?

The: Ct looks for an radiological finding that suggests abnormality and a brochoscopy actually looks at the living tissue with a camera and often takes a biopsy to send for pathology. Ct can be used to get a biopsy as well with a guided needle. ...Read more

24

24
What is the difference between CT and xray?

What is the difference between CT and xray?

Contrast: An xray (also called radiograph) is done by sending xrays through a body part but only in one projection so there is overlap of body parts and contrast is not very good. Ct also uses xrays but the final cross-sectional image (slice) is reconstructed from a combination of xrays shot from multiple directions/projections; therefore, there is no overlap of body parts and much better contrast. ...Read more

25

25
What is the difference between an MRI and a ct?

What is the difference between an MRI and a ct?

MRI/CT: A CT scan uses x-ray radiation to generate an image. An MRI uses magnetic fields "tuned" to the frequency of protons in the body. Since each scan essentially measures a different property of tissues in the body, they are complementary tests. That is why if one doesn't provide a definitive answer, often the other will be ordered. ...Read more

26

26
What is the difference between an MRI and a ct?

What is the difference between an MRI and a ct?

MRI/CT: A CT scan uses x-ray radiation to generate an image. An MRI uses magnetic fields "tuned" to the frequency of protons in the body. Since each scan essentially measures a different property of tissues in the body, they are complementary tests. That is why if one doesn't provide a definitive answer, often the other will be ordered. ...Read more

27

27
What's the difference between an angiogram and CT scan?

What's the difference between an angiogram and CT scan?

A CT scan: Is performed without and/or with intravenous contrast/dye and evaluates the entirety of the body part being imaged. An angiogram is performed with intravenous contrast and directly evaluates the blood vessels. ...Read more

28

28
What is the difference between normal CT and pet CT scan?

What is the difference between normal CT and pet CT scan?

Nuclear study: Ct radiographic examination by itself is usually more detailed with higher resolution utilizing intravenous contrast material to help differentiate soft tissue abnormalities such as lymph nodes from vascular structures. Ct combined with pet, is low resolution but helps define areas of increased radiotracer uptake of isotope f18 fdg, glucose metabolite, by allowing anatomic localization. ...Read more

29

29
When doing CT of chest what's the difference with and without contrast?

When doing CT of chest what's the difference with and without contrast?

See below: No contrast shows you the lung fields. Contrast enables you to see blood clots in the pulmonary vessels as well as differentiate between lymph nodes and vessels in the mediastinum, overall a better study if you can tolerate it (allergies, renal function). ...Read more

30

30
What is the major difference between CT and MRI technology? How are the results different?

CT: Ct and MRI are complementary exams in many cases, which means that we can examine the same body area and get different "looks" to help us figure out what we are seeing. Ct uses ionizing radiation, while MRI uses magnetic fields to create images. (a physicist once reminded me that a magnetic field is also radiation, but the kind that people talk so much about, in relation to cancer potential, is the ionizing type.)

example: when a kidney or liver mass is seen at ct, a radiologist might suggest that an MRI could help to further clarify (1) whether it is real, or (2) what it is. We don't always need an MRI to clarify a ct finding, just sometimes. That "sometimes" is determined by the radiologist, depending on how the abnormality looks at ct. ...Read more

Dr. Lynne Weixel
12 Doctors shared insights

Ct Urogram (Definition)

Ct done to look at kidney to replace the test called an ivp....Ct urogram ...Read more