Howard B. Schaff MD


Discography

Discography is a medical procedure that involves injecting a dye into the jellylike center of a spinal disc to help diagnose back problems. During discography, a health professional evaluates the amount of pressure needed to inject the dye into the disc, whether it causes pain, how much dye is used, and how the dye…

Discography

Discography is a medical procedure that involves injecting a dye into the jellylike center of a spinal disc to help diagnose back problems. During discography, a health professional evaluates the amount of pressure needed to inject the dye into the disc, whether it causes pain, how much dye is used, and how the dye…

Computed Tomography (CT) Scan of the Head and Face

A computed tomography (CT) scan uses X-rays to make pictures of the head and face. During the test, you will lie on a table that is attached to the CT scanner, which is a large doughnut-shaped machine. Your head will be positioned inside the scanner. The CT scanner sends X-rays through the head. Each rotation of the…

Magnetic Resonance Imaging (MRI) of the Head

Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to take pictures of the head. In many cases, MRI gives information that can’t be seen on an X-ray, ultrasound, or computed tomography (CT) scan. For an MRI of the head, you lie with your head inside a special machine…

Angiogram of a Normal Kidney

Courtesy of Intermountain Medical Imaging, Boise, Idaho. Many people have more than one artery for blood flow to the kidneys. Figure 1 is an angiogram showing the main artery supplying blood flow to the kidney. Figure 2 is an angiogram showing a second artery helping to supply blood to the kidney.