Showing posts with label Videos. Show all posts
Showing posts with label Videos. Show all posts

Wednesday, 23 February 2011

NMR & MRI BASICS TUTORIALS - VIDEOS

1.) PRECESSION & RECESSION

This video explains the basic concepts of precession, relaxation and resonance.



2.) NUCLEAR MAGNETIC RESONANCE

This video explains the concepts of spin states in magnetic field, magnetization, larmor frequency and radio frequency coil.



3.) EARTH FIELD MRI TEACHING SYSTEM

This video explains about earth's magnetic field.



4.) FREE INDUCTION DECAY (FID)

This video explains the concept of free induction decay and a spectrum in the frequency domain.



5.) MAGNETIC FIELD HOMOGENEITY

This video explains about magnetic field inhomogeneity and the purpose of shimming.



6.) SPIN ECHOS & T2 RELAXATION

This video explains the concepts of spin echos, Carr-Purcell-Meiboom-Gill pulse sequences & T2 relaxation.



7.) T1 & T2 RELAXATION

This video explains the measurement of spin-spin relaxation and spin-lattice relaxation.



8.) MAGNETIC RESONANCE IMAGING (MRI)

This video explains an 1D magnetic resonance imaging experiment.



9.) K-SPACE

This video explains the concept of k-space and representation of spatial information in k-space.



MULTI-DIMENSIONAL K-SPACE

This video explains the k-space in two and three dimensions.



10.) TWO DIMENSIONAL MRI

This video explains the two dimensional magnetic resonance imaging experiment.

MRI OF CARDIOMYOPATHIES

This video explains about mri techniques, delayed enhancement, myocardial infarction injury, infarct enhancement, non ischemic enhancement, dilated cardiomyopathy, differences between ischemic & non ischemic cardiomyopathies, sarcoidosis




CARDIOMYOPATHY MRI

This video shows various magnetic resonance images of cardiomyopathy.

Sunday, 28 September 2008

THOUGHT CONTROLLED WHEELCHAIR -VIDEOS



(Intelligent wheelchair capable of converting thought into commands)

BRAIN-MACHINE INTERFACE (VIDEOS)



(Play games with your eyes in University of Florida biomedical engineer Tom DeMarse's lab)



(Monkey controls robotic arm with brain computer interface)



(The monkey has a microchip implanted in its brain, and linked up to a robotic arm. The monkey can control the arm like an extension of its body, with incredible precision, and without any visible effort)



(Computer mouse moved by mind using a clinic helmet)

BIOMEDICAL ENGINEERING FROM THE QURAN

BIOMEDICAL ENGINEERS JOB DESCRIPTION - VIDEOS



(Hospitals and medical centers stay active around the clock, and medical personnel rely on advanced biomedical equipment to make the difference when life is literally hanging in the balance. They demand that the equipment they use be repaired quickly and maintained in first-class condition to avoid malfunctions that might slow down or stop medical procedures. The up-keep and repair of this equipment requires highly skilled biomedical equipment technicians, professionals dedicated to precise work—professionals like the graduates of the Biomedical Equipment Technology (BET) program at Texas State Technical College.)



Saturday, 27 September 2008

HIP REPLACEMENT - VIDEOS


(hip replacement surgery, with animations, detailed information on what to expect before, during and after the surgery, and video of rehabilitation exercises and aids.)


(Total hip replacement is a common hip surgery that involves complications including joint dislocation, implant loosening, and fractures)



(Orthopaedic surgeon Dr. Gregory Hicken performs a total hip replacement on an 83 year old female patient with the assistance of a computer-aided surgical navigation system by Stryker on Dec. 11 at Cache Valley Specialty Hospital.)


(Hip Replacement Using Antero-Lateral Approach)

Friday, 27 July 2007

ULTRASOUND SHOWING FETUS-VIDEOS

Ultrasound on Fetus



Week 12 Ultrasound with Quintuplets

This is an ultrasound of the Wilkinson Quintuplets at 12 Weeks. Features both 3D and 2D ultrasound.


ULTRASOUND OF TWINS




4D TWIN ULTRASOUND




4D Twin Ultrasound: Boot to the Head





3D ULTRASOUND OF A BABY



4D ultrasound




ULRASOUND PROCEDURE ON A LADY

CARDIAC ULTRASOUND-VIDEO

NORMAL ECHOCARDIOGRAM

Tuesday, 24 July 2007

HANDHELD X-RAY SYSTEM - VIDEO

NOMAD is a handheld intraoral x-ray system that is cordless, battery-powered, true DC, lightweight and simple-to-use. An external backscatter shield and unique internal radiation shielding ensure operator safety that exceeds regulatory requirements. NOMAD's true portability doesn't compromise the diagnostic quality of the x-ray images. It's economical. In the office, NOMAD does the work of multiple conventional x-rays.







Tuesday, 26 June 2007

CATHERIZATION OF HEART - VIDEO

Left and Right Heart Catheterization and Angiogram

ANGIOGRAM VIDEOS

1.) ANGIOGRAM OF HEART


2.) CT ANGIOGRAM HEART SCAN BEATING


3.)CEREBRAL ANGIOGRAM-1

Dynamic contrast enhancement via emergent pattern formation by simple, reactive multi agent systems. The emergent patterns produced by the agents enhances the contrast seen between the blood vessels and the rest of the image.


4.)CEREBRAL ANGIOGRAM-2

Visualisation of agents as they live and move on the landscape consisting of a portion of a cerebral angiogram image.


5.) CT ANGIOGRAM HEART SCAN - COLOR 3D





6.) ANGIOGRAM OF UPPER EXTREMITY

ANGIOPLASTY


ANGIOPLASTY

Angioplasty is the mechanical widening of a narrowed or totally-obstructed blood vessel. These obstructions are often caused by atherosclerosis.

Coronary angioplasty

1.)Coronary angioplasty is a "percutaneous transluminal coronary angioplasty". The procedure was quickly adopted by numerous cardiologists and many leading medical centers throughout the world were adopting the procedure as a method to avoid bypass surgery.

2.)A small mesh tube, or "stent", is introduced into the blood vessel or artery to prop it open using percutaneous methods. Angioplasty with stenting is a viable alternative to heart surgery.It has consistently been shown to reduce symptoms due to coronary artery disease and to reduce cardiac ischemia, but has not been shown in large trials to reduce mortality due to coronary artery disease, except in patients being treated for a heart attack acutely (also called primary angioplasty). There is a small but definite reduction of mortality with this form of treatment compared with medical therapy, which usually consists of the administration of thrombolytic medication.

VIDEO ON CORONARY ANGIOPLASTY


Peripheral angioplasty


Peripheral angioplasty refers to the use of mechanical widening in opening blood vessels other than the coronary arteries. It is often called percutaneous transluminal angioplasty or PTA. PTA is most commonly done to treat narrowings in the leg arteries, especially the common iliac, external iliac, superficial femoral and popliteal arteries. PTA can also be done to treat narrowings in veins.

VIDEO ON PERIPHERAL ANGIOPLASTY

Renal artery angioplasty

Atherosclerotic obstruction of the renal artery can be treated with angioplasty of the renal artery (percutaneous transluminal renal angioplasty,PTRA). Renal artery stenosis(Narrowing of Renal artery) can lead to hypertension and loss of renal function.

VIDEO ON RENAL ANGIOPLASTY


Carotid angioplasty

Generally, carotid artery stenosis is treated with angioplasty and stenting for high risk patients in many hospitals. It has changed since the FDA has approved the first carotid stent system (Cordis) in July 2004 and the second (Guidant) in August 2004. The system comprises a stent along with an embolic capture device designed to reduce or trap emboli and clot debris. Angioplasty and stenting is increasingly being used to also treat carotid stenosis, with success rates similar to carotid endarterectomy surgery. Simple angioplasty without stenting is falling out of favor in this vascular bed. SAPPHIRE, a large trial comparing carotid endarterectomy and carotid stenting with the Cordis stent found stenting non-inferior to carotid endarterectomy.

VIDEOS ON CAROTID ANGIOPLASTY

Brigham and Women's Hospital Cardiovascular Center hosted a live Webcast for viewers to watch and learn more about endovascular stenting for the treatment of atherosclerotic carotid stenosis, a blockage of the main artery to the neck that is a common cause of stroke in America.This procedure represents a true collaborative effort - bringing together the expertise of the BWH cardiac catheterization laboratory and its vascular surgery department - a combination that benefits patient outcomes.

Watch CAROTID ANGIOPLASTY VIDEO

OPEN HEART SURGERY & CATH LAB - VIDEO

HYBRID OPERATION ROOM WITH CATH LAB

Vanderbilt University Medical Center hosted a live webcast from their state-of- the-art Hybrid OR/Cath Lab on September 29, 2005 at 4pm (CDT).

When John Byrne, M.D. joined Vanderbilt University Medical Center a year ago, he brought a novel idea that he hoped would impact the cardiovascular world, much like air bag safety equipment revolutionized the auto industry.

Called the Hybrid OR/Cath Lab, the state-of-the-art operating suite houses all the equipment and monitoring devices necessary to perform both open-heart surgeries like coronary bypass as well as percutaneous coronary interventions and procedures, including angioplasty and stenting.

Watch SURGERY


BIOMEDICAL BOOKS

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