BME News Highlights
October 12, 2006
BME student paper is selected as finalist in IEEE EMBS Student Design Competition
A paper, "Ultrasound-Guided Noninvasive Measurement of a Patient's Central Venous Pressure", submitted by three BME graduate students (Vikram Aggarwal, Aniruddha Chatterjee and Yoonju Cho) was honored as a finalist in the 2006 IEEE EMBS Student Design Competition, held September 1, 2006 in New York.
Abstract- Central Venous Pressure (CVP) is an important physiological parameter, the correct measure of which is a clinically relevant diagnostic tool for heart failure patients. A current challenge for physicians, however, is to obtain a quick and accurate measure of a patient's CVP in a manner that poses minimum discomfort. Current approaches for measuring CVP involve invasive methods such as threading a central venous catheter along a major vein, or tedious physical exams that require physicians to grossly estimate the measurement. Our solution proposes a novel noninvasive method to estimate central venous pressure using ultrasound-guided surface pressure measurement. Specifically, our device works in conjunction with an ultrasound machine and probe that is used to visualize the interior jugular (IJ) vein below the surface of the skin on a patient's neck. Once the interior jugular vein is located, our device detects the pressure on the skin required to collapse the IJ and correlates this value to a central venous pressure reading reported to the operator. This quick and noninvasive measurement is suitable for emergency situations or primary care settings where rapid diagnosis of a patient's CVP is required, and prevents the need for further invasive and costly procedures. The measurement procedure is also simple enough to be performed by operators without extensive medical training.
The project began in January 2006 as part of the Honors Biomedical Instrumentation course taught by Professor Nitish Thakor, whereby the team designed and built a prototype of their device with clinical consultation from their project advisor, Dr. Dickson Cheung, Director of Patient Safety and Quality Improvement Initiatives at Bayview Medical Center. The team has taken their design idea forward and recently participated in the BME Design Day (3rd place), NCIAA BMEIdea Competition (Honorable Mention), Collegiate Inventors Competition, and 2006 IEEE EMBS Student Design Competition (Top 3).
In addition to these activities, the team has also consulted with Aditya Polsani and the JHU Technology Transfer Office for filing of a provisional patent and potential licensing of the technology. Currently, the team has developed a second version of the prototype and is moving forward with clinical validation studies at the Johns Hopkins Bayview Medical Center. They have established research collaborations with Dr. David Hellman, Chairman, Dept. of Emergency Medicine and other physicians in cardiology and emergency medicine. The study will enroll patients receiving elective right heart catheterization, and will help validate the efficacy of the device in a clinical setting.
Paper: Ultrasound-Guided Noninvasive Measurement of a Patient’s CentralVenous Pressure
Posted: October 12, 2006