There are several disadvantages to using ultrasound in medicine, one of which is the potential for operator error. Some machines also produce images with limited resolution.Know More
Ultrasound cannot be used to study any part of the body containing gas, so it is not a useful tool for diagnosing problems of the lung and digestive tract. This type of study is also very limited when used to identify fractures and other problems with the bones.
The CancerQuest website says some ultrasound scans may produce false positives, causing patients to undergo biopsies and other invasive procedures that are not necessary. Ultrasound is also unable to detect calcification of the breast tissue, making it less useful for detecting some forms of breast cancer.Learn more about Diagnostics & Imaging
A liver ultrasound is a procedure in which an ultrasound technician utilizes an ultrasound transducer to view and measure a patient's liver, according to the American Cancer Society. This test is often ordered to diagnose medical conditions such as liver cancer.Full Answer >
One basic technique for reading ultrasound entails correlating shades of black, white and gray with fluid, bone and tissue respectively. Cartilaginous material and low- or high-density organic matter will appear as gradations of these colors.Full Answer >
A renal ultrasound is a safe and noninvasive test that is used to create images of the ureters, bladder and kidney through the use of sound waves. Ideally, it is used to determine the size, condition and shapes of these internal body parts thus eliminating the use of a surgical operation. It allows clear visualization of the internal structures from outside the body.Full Answer >
The earliest an ultrasound can be used when pregnant is about 5 weeks, according to BabyMed. The gestational sac can be seen via a trans-vaginal ultrasound starting at this time.Full Answer >