CT Kidney Scan: Purpose and Procedure

The kidney has several roles in regard to maintaining the health of the body: It removes waste products from the bloodstream; It helps to maintain a proper water balance in the body; It helps to maintain proper mineral balance in the body. A CT scan of the kidney might be recommended for anyone who has symptoms that could be caused by the urinary system, including blood in the urine, pain that does not seem to go away in the flank (side) or lower back, or other symptoms. Your provider may perform this imaging study to get more information about the kidneys and other tissues that may assist your doctor in determining whether there are structural abnormalities of the kidneys and to determine what you should do about it. Molecular Diagnostics and Therapy provides diagnostic testing that helps in the evaluation of several health conditions.

What Is a CT Kidney Scan?

During a CT (computed tomography) kidney scan, a powerful X-ray beam and computer technology create detailed images of the kidneys. It may be able to indicate the location of the surrounding organs, such as the ureters that direct urine from the kidneys to the bladder. A CT Scan is like an X-ray, except it will provide a more detailed image of the interior of the body. The exam could be performed with or without contrast according to indications for the exam. The type of scan that the doctor recommends will depend on what symptoms you are suffering, your medical history, and what information the doctor would require.

Why Is a CT Kidney Scan Performed?

If your doctor suspects there might be some problem with your kidneys or bladder, he or she may order a CT scan of your kidney. This is often associated with kidney stones that can result in severe pain in the side or back, and with vomiting and blood in the urine. With a CT scan, stones, the size of stones, and whether they block the passage of urine can be identified.

A kidney infection (with suspected complications); abdominal or flank pain, when no cause can be found; trauma or abnormalities detected from other imaging scans, or an exam ordered to help diagnose kidney infection. In some patients, it can be used to diagnose masses, cysts, and other types of kidney abnormalities.

What Conditions Can a CT Kidney Scan Detect?

CT scan of the kidney can be used to find several kidney and nearby urinary tract problems.

One of the most prevalent indications for this examination is kidney stones. A scan can help to reveal the location and size of a stone and whether it is blocking the passage. It also might be used to assess cysts, masses, blockage of urinary flow resulting in swelling, and some complications of kidney infections. If kidney injury is thought to occur, CT imaging can aid in determining the level of damage. But a CT scan isn't enough to identify all types of kidney disease. Depending on the problem suspected, the doctor may order urine tests, blood tests, and/or an ultrasound or other diagnostic tests.

How Is a CT Kidney Scan Performed?

Prior to the scan, the imaging team may ask the patient if they have certain symptoms, medical history, current medications, and previous imaging reports. The patient then rests on a scanning bed, normally face up. The table moves through the CT scanner, which is able to create pictures of the kidneys and the surrounding tissues. The patient might be instructed to briefly pause his or her breathing to minimize movement and produce sharper images.

Some kidney CT scans use contrast dye, usually injected into a vein, which helps show blood flow, kidney tissue, and certain abnormalities. Contrast may help assess kidney tissue, blood vessels, and certain abnormalities. Not all kidney CTs need to have contrast dye. This varies according to the clinical use. The overall time required for preparation and contrast may increase the total time for the scan, but the actual scan usually is relatively brief. After the entire exam, a radiologist reviews the images and sends a report to your doctor.

How Should You Prepare for a CT Kidney Scan?

It depends on the type of CT scan to be performed. Some tests will require no preparation, and in some cases there are specific instructions they will provide prior to the test about food and drink. A patient with kidney disease, any concerns, or previous reactions to the contrast dye, allergies, or medication should let the doctor know. Prior to administration of the contrast, the medical staff may choose to test kidney function if appropriate.

Inform the doctor or technologist that you or your partner might be pregnant as CT requires the use of ionising radiation. During the interview, it is good to discuss the conditions of the prescription and report from previous consultations. Do not stop or change any medication unless directed to do so by your doctor.

What Are the Benefits of a CT Kidney Scan?

A CT scan of the kidneys can give a detailed image to aid in the diagnosis of some kidney-related symptoms. It is capable of detecting kidney stones, determining if there is a blockage, and identifying structural differences that are not easily seen from a standard X-ray. A scan can sometimes also help the doctor assess how serious an injury or abnormality is. It could be a valuable source of information in emergency situations. It depends on the patient's condition and the type of imaging test to use. In some cases, ultrasound is adequate and could be used if preference is given to it because of the absence of ionising radiation.

What Are the Risks of a CT Kidney Scan?

A CT scan of the kidneys is an X-ray scan which does expose you to ionising radiation. The exam is encouraged if the benefits of the examination are greater than the risks. There is a very slight chance of an allergic-type reaction if the contrast is present. There are some kidney disorders that may need further investigation before being given contrast. Give the imaging staff a full medical history so they can choose the safest approach. Generally, the exam does not hurt. Be sure to read and follow the instructions before the scan, and be sure to let the medical staff know of relevant health conditions ahead of time.

What Is the Cost of a CT Kidney Scan?

The cost of a kidney CT scan may vary from one diagnostic center to another, mostly because of variations in the type of CT scan, whether it requires using contrast dye, and whether the center also offers reporting services. The level of difficulty for the exam and, possibly, extra imaging needs can likewise impact the ultimate cost. To keep patients informed on the current pricing, availability, appointment schedules, and accreditation details, patients are encouraged to contact Molecular Diagnostics and Therapy. The team can make available information regarding imaging services and preparation requirements.

Conclusion

The CT kidney scan is an important imaging test used to help assess kidney stones, urinary obstructions, injury, and other kidney mass abnormalities. It can give a detailed picture of the kidneys and associated organs that can be useful for diagnosis and treatment planning. The necessity for contrast and why it is necessary will be based on the patient's symptoms and medical history. Seeking the doctor's advice and following his/her recommendation helps to receive a proper examination.