Inland Imaging has expanded its noninvasive vascular lab equipment to
include a new Transcranial Doppler (TCD) system which is used to
investigate the intracranial arteries through Doppler ultrasound
technology. The test has the ability to measure blood flow velocity and
direction in the blood vessels of the brain to aid in the diagnosis of
emboli, stenosis, and vasospasm.
The TCD study, introduced in the late 1980’s, has grown steadily in
popularity in the United States as a test to successfully monitor the
risk of stroke and vascular disease. The painless technique determines
the speed and direction of blood flow. The TCD exam is similar to any
other ultrasound type study in that a hand held transducer is passed
lightly over the skull above an artery.
Blood flow velocity is recorded by emitting high-pitched sound waves
that bounce off the structures of the area being studied. The skull can
block the transmission of ultrasound waves, so "windows" in the skull
such as the temporal region, through the eyes, below the jaw, or back
of the head must be used to obtain the information.
Inland Imaging is fortunate to have vascular technologists experienced
in TCD and it’s applications. TCD is often used in conjunction with
other tests such as MRI, MRA, carotid duplex ultrasound, and CT scans.
The added TCD service is available at the Inland Imaging Holy Family
Hospital center. Questions regarding the new exam can be directed to
Inland Imaging Vascular Services Manager, Monte Madsen at 509-953-2540.
