Howard B. Schaff MD


Angiogram

An angiogram is an X-ray test that provides pictures of the blood flow in a blood vessel. During an angiogram, a material that shows up on an X-ray (contrast material) is put into a blood vessel through a thin tube (catheter). An angiogram may be done to look for problems such as a tear in a blood vessel that can cause…

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…

Abdominal X-Ray of a Bowel Obstruction

Courtesy of Intermountain Medical Imaging, Boise, Idaho. Figure 1 shows a normal abdomen. Figure 2 shows air trapped in the bowels because gas, fluids, or solids can’t move through the bowels normally.

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…