In women, the bladder lies in front of and below the uterus and a small volume of residual urine can be confused with the vagina (Fig 2). A sagittal view shows the vagina as a tube-like structure while a transverse scan shows it to be circular.
https://www.nursingtimes.net/clinical-archive/continence/using-bladder-ultrasound-to-detect-urinary-retention-in-patients/5001853.article
Tests to find cancer in the bladder. To determine the position of the cancer in the bladder, you will need various tests. These may include an ultrasound, a CT or MRI scan, a flexible cystoscopy, and a rigid cystoscopy and biopsy. Ultrasound. An ultrasound scan uses soundwaves to create a picture of your organs. It is used to show if cancer is present and how large it is. An ultrasound can’t always find small tumours, so your doctor may do further tests. Your medical team will usually ask you to have a full bladder for the ultrasound.
http://www.cancervic.org.au/about-cancer/cancer_types/bladder_cancer/diagnosing-bladder-cancer.html
CT scan for bladder cancer. CT scan for bladder cancer. A CT of the bladder, ureters and kidneys is called a CT urogram. Sometimes, this imaging test may be done instead of an intravenous pyelogram to look specifically at the upper part of the urinary system.
http://www.cancercenter.com/bladder-cancer/ct-scan/
The bladder is usually scanned trans-abdominally, using an ultrasound probe on the abdomen at the suprapubic region, to provide transverse and sagittal views (Fig 1). A scan shows the bladder as a globe-like structure with the interface between the bladder wall and the urine showing a clear demarcation.
https://www.nursingtimes.net/clinical-archive/continence/using-bladder-ultrasound-to-detect-urinary-retention-in-patients/5001853.article
Some tumours may cause irritation of the bladder and cause symptoms similar to a urine infection. For example, passing urine frequently or pain on passing urine. If the cancer is a muscle-invasive type, and grows through the wall of the bladder, other symptoms may develop over time. For example, pain in the lower tummy (abdomen). If the cancer spreads to other parts of the body, various other symptoms can develop.
https://patient.info/health/bladder-cancer-leaflet
Tests for Gallstones. 1. Ultrasound. The ultrasound uses sound waves to visualize the bile ducts, liver, and pancreas. When gallstones are present, they are seen in either the gallbladder or bile ducts. Little risk is associated with the ultrasound test.
https://www.verywell.com/tests-to-diagnose-and-evaluate-gallbladder-disorders-3522412
Urethral catheterisation, an invasive procedure with risks of infection, used to be regarded as the gold standard for measuring residual urine volume. It has now been superseded by an ultrasound scan of the bladder estimating the post-void residual urine (Martin et al, 2006).
https://www.nursingtimes.net/clinical-archive/continence/using-bladder-ultrasound-to-detect-urinary-retention-in-patients/5001853.article
Less commonly, an MRI (magnetic resonance imaging) scan may be used to check for bladder cancer. This scan uses magnetic waves to create detailed cross-sectional pictures of organs in your abdomen. You should let your medical team know if you have a pacemaker, as the magnetic waves can interfere with some pacemakers.
http://www.cancervic.org.au/about-cancer/cancer_types/bladder_cancer/diagnosing-bladder-cancer.html
Other uses for the endoscopic ultrasound include the diagnosis of pancreatic cancer and cancer of the bile ducts. 3. Computerized Tomography (CT) Scan. While the CT Scan may identify gallstones, it is usually not as effective as the ultrasound. A CT Scan can also diagnose cancer in the liver and pancreas.
https://www.verywell.com/tests-to-diagnose-and-evaluate-gallbladder-disorders-3522412
Tests for Bladder Cancer. Bladder cancer is often found because of signs or symptoms a person is having, or it might be found because of lab tests a person gets for another reason. If bladder cancer is suspected, exams and tests will be needed to confirm the diagnosis.
https://www.cancer.org/cancer/bladder-cancer/detection-diagnosis-staging/how-diagnosed.html
what type of scan is done for bladder
Computed Tomography or Magnetic Resonance Imaging scan is done for bladder. Computed Tomography or Magnetic Resonance Imaging scan is done for the bladder.