CT (Computed Tomography) scans are medical tests that helps physicians diagnose and treat medical conditions. CT scans can be used to view bone and soft tissues, including organs, muscles, and tumors.
CT images provide anatomical information from a cross-sectional plane of the body. Each image is generated by a computer synthesis of x-ray transmission data.
Bone density scanning, also called dual-energy x-ray absorptiometry (DXA or DEXA) or bone densitometry, is an enhanced form of x-ray technology that is used to measure bone loss. DEXA is today's established standard for measuring bone mineral density (BMD).
Interventional radiology is the clinical subspecialty that uses fluoroscopy, CT, and ultrasound to guide percutaneous (through the skin) procedures such as performing biopsies, draining fluids, inserting catheters, or dilating or stenting narrowed ducts or vessels.
Magnetic Resonance Imaging (MRI) uses a powerful magnetic field, radio waves and a computer to produce detailed pictures of organs, soft tissues, bone and virtually all other internal body structures. The images can then be examined on a computer monitor or printed or put onto a CD. MRI does not use ionizing radiation (x-rays).
Nuclear Medicine, like other forms of imaging helps to assist physicians in detecting and diagnosing diseases. Nuclear Medicine works by giving patients small doses of radioactive material, radiopharmaceutical or a tracer, that localizes in specific organ systems. It collects in the organ and gives off gamma rays, which is detected by the gamma camera and then produces images and measurements by a computer system.
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Positron emission tomography (PET), also called PET or a PET scan, is a diagnostic examination that involves the development of biologic images based on the detection of subatomic particles. These particles are emitted from a radioactive substance given to the patient.
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Ultrasound, also called medical sonography or ultrasonography, is an ultrasound-based diagnostic medical imaging technique used to visualize muscles, tendons, and many internal organs, their size, structure and any pathological lesions with real time tomographic images. It is also used to visualize a fetus during both routine and emergency prenatal care.
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An x-ray (radiograph) is a painless medical test that helps physicians diagnose and treat medical conditions. Radiography involves exposing a part of the body to a small dose of ionizing radiation to produce pictures of the inside of the body. X-rays are the oldest and most frequently used form of medical imaging.For more general information on X-ray, click here.
As technological and scientific advancements are made-new types of tests/scans are being developed, and new imaging equipment is coming to the market.
One example of this equipment is the SPECT/CT camera. The SPECT/CT camera joins nuclear medicine and CT (computed tomography). The SPECT images are super-imposed with the CT images. Combining nuclear medicine metabolic visualizations and CT anatomical visualizations-accurate attenuation mapping is possible-allowing pin-point accuracy and more confident diagnoses of findings.