Computerized Axial Tomography, CAT, or Computed Tomography, CT Terms +
(a radiographic technique that produces an image of a detailed cross section of bodily tissue using a narrow collimated beam of x-rays that rotates in a full arc around a patient to image the body in cross-sectional slices)
The term tomogram may be more specific; for example, a nephrotomogram (tomogram of the kidney).
The tomogram is the picture; the tomograph is the apparatus; and tomography is the process.
This definition is often associated with trauma medicine practiced in emergency rooms and represents a popular view of the term.
In psychiatry, trauma has assumed a different meaning and refers to an experience that is emotionally painful, distressful, or shocking, and which often results in long-term mental and physical effects.
Ultrasound imaging, referred to as ultrasonography, allows physicians and patients to get an inside view of soft tissues and body cavities, without using invasive techniques.
Ultrasound is often used to examine a fetus during pregnancy and so far there is no convincing evidence for any danger from ultrasound during pregnancy.
The narrow, lower portion of the uterus is the cervix; the broader, upper part is the corpus which consists up two layers of tissue.
The deoxygenated form of hemoglobin (deoxyhemoglobin) in venous blood makes it appear dark and the veins are part of the afferent wing of the circulatory system which returns blood to the heart.
X-rays possess the capabilities of penetrating most substances (to varying extents), of acting on a photographic film or plate (permitting radiography), and of causing a fluorescent screen to give off light (permitting fluoroscopy).
Formerly called a Roentgen ray, in low doses X-rays are used for making images that help to diagnose disease, and in high doses to treat cancer.