As a neurology surgeon at a hospital, I often use Transcranial Doppler (TCD) to track vasospasm, which is a common complication following aneurysmal subarachnoid hemorrhage (SAH). Vasospasm is characterized by a constriction of the blood vessels in the brain, which can lead to decreased blood flow and oxygenation to the brain, and can ultimately result in brain injury or stroke.

Photoplethysmography (PPG) sensors are widely used in vascular laboratories to non-invasively measure blood flow and perfusion in various vascular beds. These sensors work by measuring changes in the volume of blood in the vessels, which can be used to infer information about blood flow and perfusion.

Regular calibration of transcranial Doppler (TCD) equipment is crucial to ensure accurate and reliable results. Here are some reasons why calibration is important.

Here are some general considerations to keep in mind when selecting a transcranial Doppler (TCD) equipment for your clinic

Transcranial Doppler (TCD) is a non-invasive diagnostic tool that measures blood flow velocity in the arteries of the brain. TCD has various applications in neurology and stroke, including:   Detection

Transcranial Doppler (TCD) is a non-invasive diagnostic tool that uses ultrasound waves to measure blood flow velocity in the arteries of the brain. MRI (Magnetic Resonance Imaging) is a non-invasive

Transcranial Doppler (TCD) technology has been rapidly advancing in recent years, allowing for non-invasive monitoring of cerebral blood flow. Here are some of the latest advances in TCD technology:  

Transcranial Doppler measures the velocity of blood flow through the brain’s blood vessels. This non-invasive test aids in diagnosing a range of medical conditions

Transcranial Doppler has a variety of clinical applications. The scan can be performed daily, at the bedside, in ICU, and involves no exposure to radiation, magnetic fields or contrast dyes. It is a far cheaper and easier logistically than CT, MRI or angiography

The Dolphin IQ & 4D host a range of technical benefits that will appeal to technicians, sonographers, and hospital IT administrators.

PAD testing can be used for differential diagnosis of ischaemic lower limb pain (claudication) from lower limb pain caused by other factors such as neurological and musculoskeletal conditions. The treadmill exercise ABI test is particularly useful for this purpose

PAD diagnostic guidelines recommend clinical assessment and diagnostic testing. Clinical evaluation is essential which includes the clinical history, review of symptoms and physical examinations