TEsting for Arterial Disease in Diabetes (TrEAD) Study

2019-08-21 20:05:49 | BioPortfolio


This study will focus on determining;

- How accurate the test is in detecting poor circulation

- How it's accuracy compares to other commonly used tests, and

- Whether test results are linked to the chance of ulcer healing or amputation. Across 2 hospitals, 305 diabetic patients will be scanned using the focused ultrasound test as well as other commonly used tests to detect poor circulation. Their results will be compared to a full version of the ultrasound test to identify the most accurate.


In the UK, over 7,000 amputations are performed each year because of diabetes. Most of these (80%) occur when a foot wound, also known as an ulcer, does not heal. The most important cause of this is poor circulation to the feet. Currently, there are no accurate tests that foot specialists can use to detect poor circulation when they see patients. Because of this, poor circulation can be missed and its treatment delayed.

A focused ultrasound test at the ankle, using a sensor and gel on the skin, can detect poor circulation. It is safe, painless and I have previously proven that it can be learned and performed quickly. It may help avoid amputations by detecting poor circulation so that it can be treated quickly.

Study Design


Diabetic Foot


Transcutaneous pressure of oxygen (TcPO2), Toe Brachial Pressure Index (TBPI), Podiatry Ankle Duplex scan (PAD-scan), Duplex Assist, Ankle Brachial Pressure Index (ABPI)


West Middlesex University Hospital
United Kingdom




Imperial College Healthcare NHS Trust

Results (where available)

View Results


Published on BioPortfolio: 2019-08-21T20:05:49-0400

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Medical and Biotech [MESH] Definitions


The blood pressure in the ARTERIES. It is commonly measured with a SPHYGMOMANOMETER on the upper arm which represents the arterial pressure in the BRACHIAL ARTERY.

The pressure within the CARDIAC ATRIUM. It can be measured directly by using a pressure catheter (see HEART CATHETERIZATION). It can be also estimated using various imaging techniques or other pressure readings such as PULMONARY CAPILLARY WEDGE PRESSURE (an estimate of left atrial pressure) and CENTRAL VENOUS PRESSURE (an estimate of right atrial pressure).

The noninvasive measurement or determination of the partial pressure (tension) of oxygen and/or carbon dioxide locally in the capillaries of a tissue by the application to the skin of a special set of electrodes. These electrodes contain photoelectric sensors capable of picking up the specific wavelengths of radiation emitted by oxygenated versus reduced hemoglobin.

The blood pressure in the VEINS. It is usually measured to assess the filling PRESSURE to the HEART VENTRICLE.

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