- Iranians holding Ashura mourning for Imam Hussein
- Third step: Iran officially informs EU of plan to expand nuclear R&D
- Iran expands nuclear R&D program: Rouhani
- Iran goes ahead in space tech, despite US sanctions: ISA
- Resistance Front undermining Israeli regime power: Top commander
- Iran: 7 crew members of detained UK ship freed
- US addiction to sanction threaten its power: Iran’s Zarif
- Dutch role in 2007 Stuxnet attack on Iran’s nuclear site under scrutiny: Iraian FM Spox.
- Iran: ‘Sustainable Security 2019’ kicks off in Caspian Sea
- Iran’s Zarif leaves Tehran for Moscow
- Shiraz University ranked 1st in liver transplantation: Iranian health official
- Japan’s Abe to meet Iran’s president to discuss easing tension in region
- Downing of US spy drone shattered war threats against Iran: Top IRGC commander
- IAEO head reports development of first ion-therapy hospital in west of Asia
- Iranian Taekwondo team wins 2019 World Cup championship
- US sanctions failed to force Iran to buckle: Report
- Crew fixing Iran oil tanker broken down in Red Sea
- As Iranians hold nerves, US seeks to scare off trade
- Leader expresses concern about Kashmir, urges India to follow fair policy toward Muslim-majority region
- Iran saffron exports down due to smuggling, government restrictions: Exporter
- Iran FM warns US against ‘serious miscalculation’ in Persian Gulf
- Iran’s resistance policy led to release of oil tanker: MP
- Iran in reverse brain drain as top students come home in rising numbers
- Iran official calls for compensation for tanker seizure
- Iran hails N Korea for standing against ‘unilateral’ US demands
- Shia Muslims celebrate Eid Al-Ghadir
- North Korea praises Iran’s anti-US struggle
- Zarif says to meet French president Friday
- Iranian court hearing case of UK oil tanker
- Over half of Japanese voters oppose joining US-led anti-Iran coalition in Persian Gulf: Poll
- IME trade ups by 21 percent in July
- Finland backs INSTEX in defiance of US
- US anti-Iran policy in high seas harms Europeans: LA Times
- Iran, China confer on Syria
- Iran, Finland share views on Persian Gulf dialogue forum: Zarif
- Iran warns US against seizure of oil tanker
- Iraq eager to benefit from Iranian Police’s experience
- Iran planning 3rd step to reduce nuclear commitments: Spokesman
- Leader grants clemency to over 1,000 Iranian inmates
- Registration for Arbaeen Pilgrimage to begin in Iran on Friday
- Iran, Iraq agree to reopen Khosravi border crossing
- Iran deplores suicide attack at Kabul wedding hall
- Iran to hold int'l hand-woven carpets expo
- Zarif meets with Iran-Kuwait Friendship Group members
- Adrian Darya oil tanker not under any sanctions, says Iran envoy
- ‘Iran to stay in nuclear deal as long as its interests are met’
- India envoy happy with positive trend of trade with Iran
- Iran’s annual export of white meat tops 2.5m tons: Minister
- Iranian scientist discovers new state of matter
- Iran, Japan diplomats discuss bilateral ties
- Iran, Ansarullah, European representatives Yemen developments
- ‘Iran to become self-sufficient in producing aircraft engines'
- US issues seizure warrant for Iranian supertanker 'Grace 1'
- Neanderthal tooth unearthed near Iran’s Zagros mountain
- Iran’s Zarif due in Kuwait on Saturday
- US faces humiliating defeat after Gibraltar releases Iranian tanker: Envoy
- Spokesman rejects claim on Iran’s commitment in exchange for tanker release
- Zarif reacts to release of Iranian tanker in Gibraltar
- Israel, UAE engaged in secret talks on Iran arranged by US: Report
- US threatens visa ban as Iranian-operated tanker sets to sail from Gibraltar
- Enemies must factor Iran's global power in their calculations: IRGC's chief commander
- Trump’s administration conflicting messages to Iran baffle go-betweens: Report
- Gibraltar releases Iran-operated tanker despite US pressure
TEHRAN, September 7 - Iranian scientists along with their colleagues at California Institute of Technology have unveiled a mobile application which can use camera of a smart phone to monitor health of heart in some minutes.
TEHRAN, Young Journalists Club (YJC) - Huntington Medical Research Institutes (HMRI) in Pasadena announces publication of “Noninvasive iPhone measurement of left ventricular ejection fraction using intrinsic frequency methodology” in Critical Care Medicine.
The study was led by Niema Pahlevan, PhD, now an Assistant Professor of Mechanical Engineering at USC and Research Scientist at HMRI, who put together a multidisciplinary team of experts in fluid dynamics, magnetic resonance imaging (MRI), cardiology and critical care medicine to accomplish the work.
The other authors on the study are Drs. Derek Rinderknecht, Peyman Tavallali, Marianne Razavi, and Prof. Morteza Gharib (all Caltech), Thao Tran, Dr. Robert Kloner and Dr. Marie Csete (HMRI) and Dr. Michael Fong (USC), Pasadenanow reported.
“If you have ever had an echocardiogram, you know that the machinery is bulky and scheduling can be difficult, so that getting frequent cardiac function studies with echocardiography is impractical,” said Dr. Csete, the Chief Executive and Science Officer of HMRI.
Dr. Pahlevan developed an elegant solution for rapid, non-invasive capture of left ventricular ejection fraction (LVEF), an important measurement used by cardiologists to assess effectiveness of cardiac contractions.
Using an iPhone video function to record skin displacement over the carotid pulse in the neck, he converted this information into a picture of the pulse waveform.
Then using mathematical tools to analyze the waveform shape, he uncovered hidden oscillations in the waveform called ‘intrinsic frequencies’.
The study conducted at HMRI was to determine if these intrinsic frequencies could in turn be used to calculate LVEF, and the calculation was compared to the gold standard measurement of LVEF obtained using cardiac MRI.
The main result of the study is that the virtually instantaneous measure of cardiac function using the iPhone agrees well with the MRI-derived measurement, and may even be more accurate than echocardiography for capturing LVEF. The paper was selected as a feature article, a great honor for a young investigator by a prestigious journal.
“We are very excited that Dr. Pahlevan will continue to work with the clinicians and scientists at HMRI, and be a bridge to engineering at USC.
The multidisciplinary approach to research is emphasized at HMRI, because it is the cross-talk between experts in very different disciplines that is needed to understand complex diseases. Dr. Pahlevan’s work will fits in so well with HMRI’s other work diseases of the cardiovascular system and brain.
In particular Dr. Pahlevan and Dr. Kevin King, HMRI’s Director of Imaging Research, are now starting to tackle vascular disease in the brain, which is an important contributor to dementia,” said Dr. Csete.
Your Comment