UltraSound - Technology Information PortalThursday, 16 August 2018
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M-ModeInfoSheet: - Modes - 
Intro, 
Basic Modes, 
Doppler Modes, 
Contrast ModesMRI Resource Directory:
 - Modes -
 
The M-mode (Motion-mode) ultrasound is used for analyzing moving body parts (also called time-motion or TM-mode) commonly in cardiac and fetal cardiac imaging. The application of B-mode and a strip chart recorder allows visualization of the structures as a function of depth and time. The M-mode ultrasound transducer beam is stationary while the echoes from a moving reflector are received at varying times.
A single beam in an ultrasound scan is used to produce the one-dimensional M-mode picture, where movement of a structure such as a heart valve can be depicted in a wave-like manner. The high sampling frequency (up to 1000 pulses per second) is useful in assessing rates and motion, particularly in cardiac structures such as the various valves and the chamber walls.
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 Further Reading:
  Basics:
Basic ultrasound for cliniciansOpen this link in a new window
March 2006   by folk.ntnu.no    
  News & More:
ULTRASOUND MEASUREMENT OF THE EFFECT OF TEMPERATURE ON MICROPERFUSION IN THE EYEOpen this link in a new window
Thursday, 25 April 2002   by www.ncbi.nlm.nih.gov    
M-Mode EchocardiographyMRI Resource Directory:
 - Cardiac -
 
M-mode (Motion-mode) ultrasound shows the motion of cardiac structures. M-mode echocardiography records the amplitude and rate of motion of a moving structure in real time by repeatedly measuring the distance of the object from the single transducer at a given moment. The single sound beam is transmitted and reflected signals are displayed as dots of varying intensities, creating lines across the screen. It yields a one-dimensional image, sometimes called an 'ice pick' view of the heart.
M-mode echocardiography is used to detect valvulopathies (calcifications, etc.) and cardiomyopathies (dyskinesis, aneurysm, etc.).
See also Bicycle Stress Echocardiography, Transthoracic Echocardiography, and Transesophageal Echocardiography.
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Placental insufficiency and fetal heart: Doppler ultrasonographic and biochemical markers of fetal cardiac dysfunctionOpen this link in a new window
   by herkules.oulu.fi    
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M1091InfoSheet: - Contrast Agents -
Intro, 
Historical Development, 
Microbubbles,
etc.MRI Resource Directory:
 - Contrast Agents -
 
From POINT Biomedical Corp
M1091 is a nitrogen-filled submicron ultrasound contrast agent with a bilayered shell composed of a biodegradable polymer and a human serum albumin outer coating. This agent under development consists of microbubbles that have a peak volumetric diameter of 0.57 µm, and a mean initial diameter of 800 nm, with more than 93% having a diameter smaller than 1 µm. Manipulations in the manufacturing process can generate structures varying in size and wall thickness.
M1091 and M1134 are two agents made of the same polymer with the same relative wall thickness, differing only in the microbubble diameter.
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• View the DATABASE results for 'M1091' (3).Open this link in a new window.

 Further Reading:
  News & More:
Optical and Acoustical Interrogation of Submicron Contrast AgentsOpen this link in a new window
Friday, 5 April 2002   by cat.inist.fr    
M1134InfoSheet: - Contrast Agents -
Intro, 
Historical Development, 
Microbubbles,
etc.MRI Resource Directory:
 - Contrast Agents -
 
From POINT Biomedical Corp
M1134 is a nitrogen-filled submicron ultrasound contrast agent under development with a bilayered shell composed of a biodegradable polymer and a human serum albumin outer coating. The microbubbles have initial diameters from 500 nm to 1.3 µm, with more than 50% having a diameter smaller than a micron.
M1134 can be used in targeted contrast imaging by entering the lymphatic system after injection into the interstitium and accumulation at lymph nodes.
M1134 and M1091 are two agents made of the same polymer with the same relative wall thickness, differing only in the microbubble diameter.
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• View the DATABASE results for 'M1134' (3).Open this link in a new window.

 Further Reading:
  News & More:
molecular imaging using ultrasoundOpen this link in a new window
   by bjr.birjournals.org    
The role of ultrasound in molecular imaging(.pdf)Open this link in a new window
2003   by bjr.birjournals.org    
Magnetic Resonance Guided Focused UltrasoundMRI Resource Directory:
 - Ultrasound Therapy -
 
(MRgFUS) Magnetic resonance guided focused ultrasound is a surgical procedure that uses high intensity focused ultrasound waves to destroy tissue in combination with magnetic resonance imaging (MRI), which guides the treatment.
With focused ultrasound waves uterine fibroids are heated and destroyed (ablated) inside the MRI device , allowing the physician to plan, monitor and control the treatment with temperature sensitive images while it is in progress.
See also High Intensity Focused Ultrasound, and Interventional Ultrasound.
Radiology-tip.comCT Guided Biopsy
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Radiology-tip.comComputer Aided Detection
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• View the NEWS results for 'Magnetic Resonance Guided Focused Ultrasound' (2).Open this link in a new window.

• View the DATABASE results for 'Magnetic Resonance Guided Focused Ultrasound' (3).Open this link in a new window.

 Further Reading:
  Basics:
Magnetic Resonance guided Focused UltrasoundOpen this link in a new window
   by en.wikipedia.org    
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Portable UltraSound - Resources - Abdominal - UltraSound Physics - Research Labs - Equipment and Parts
 
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