For head, upper spine, shoulder, wrist, or elbow scans, you will go in head first. For ankle, foot, knee, hips, lumbar, abdomen, or pelvis, you will go in feet first. Although the machine is often referred to as a "closed" MRI, both ends of the short bore tube are open.
MRI, or Magnetic Resonance Imaging, works by magnetism and radio waves to acquire images. There is no ionizing radiation used to produce MRI images.
MRI stands for Magnetic Resonance Imaging. When a patient is placed into the strong magnetic field of the MRI machine, the water molecules of the body align with the magnetic field. Radio waves (the loud noises heard) are used to excite and flip those molecules in different directions. As the molecules flip, they emit a signal which is received by a coil (antenna) placed around the requested exam body part. That signal is transformed into an image for the radiologist to interpret.
CT stands for Computerized Tomography. A very small x-ray beam is rotated around the patient, projecting to a detector on the opposite side of the large circular gantry. The detector and the beam continue to rotate as the CT table moves the patient through the given scan area. CT can quickly produce images with good spatial resolution and can capture areas of the body that move with better detail (example: the heart and lungs).
A full bladder is required for an ultrasound exam because it is a great uniform density which allows the technologist to properly visualize the organs of the pelvic area.
Some exams require unobstructed views of the stomach and bowel without the added density and obstruction of food and/or additional fluid.
For any patient over the age of 65, we will need your BUN and Creatinine test results within the last 6 weeks. Certain labs are also required for any patients with a history of renal disease, kidney disease, dialysis, kidney transplant, single kidney, kidney (renal) cancer, diabetes, or hypertension.
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