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Radiology Database Open this link in a new window Magnetic Resonance Imaging Database Open this link in a new window
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Ultrasound Gel - PACS - UltraSound Technician and Technologist Jobs - Education - Hospitals - Services and Supplies
 
GainMRI Resource Directory:
 - Image Quality -
 
The gain is a linear factor that is used in a device as a multiplier after calibration. The gain is the ratio of input to output in an amplifier. The sensitivity of a probe is adjusted by changing the gain.
See also Compress, and Reject.
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• View the NEWS results for 'Gain' (11).Open this link in a new window.

• View the DATABASE results for 'Gain' (16).Open this link in a new window.

 Further Reading:
  News & More:
Types of ultrasound artifacts?Open this link in a new window
   by www.frca.co.uk    
Gallbladder UltrasoundMRI Resource Directory:
 - Gall Bladder -
 
Sonography of the gallbladder is a reliable technique for diagnosing e.g., gallstones, cholecystitis, tumors, polyps, or ductal obstruction. Patient should be examined with empty stomach and on a low fat diet the night before. Barium studies, endoscopy, ERCP, colonoscopy, and abdominal CT should be performed after this examination.
Gallbladder ultrasound is best performed with a 5 MHz curved array or a linear array transducer in cases of a very superficial gallbladder. In obese patients or in patients with difficult sonographic access, a 3.5 MHz sector or curved linear transducer is advantageous.
Gallbladder and biliary tree are usually imaged in supine and posterior oblique (LPO) positions. Sometimes very small gallstones are better visible in upright and prone position.
Radiology-tip.comBiliary Contrast Agents
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Radiology-tip.comMagnetic Resonance Cholangiopancreaticography
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• View the DATABASE results for 'Gallbladder Ultrasound' (2).Open this link in a new window.

 Further Reading:
  Basics:
GALLBLADDER ULTRASONOGRAPHY PROCEDURE MANUAL(.pdf)Open this link in a new window
   by www.cdc.gov    
  News & More:
CholecystitisOpen this link in a new window
   by emedicine.medscape.com    
US Resources  
Ultrasound Guided Interventions - Education - Artifacts - Non-English - Endoscopic - Movies
 
GE HealthcareMRI Resource Directory:
 - Manufacturers -
 
www.gehealthcare.com

GE Healthcare is the result of the merger between GE Medical and Amersham Health in Nov. 2004, after GE acquired Amersham Health for 9.5 billion in Oct. 2003. Jeffrey R. Immelt, Chairman of the Board and Chief Executive of General Electric, said, 'Amersham's diagnostic pharmaceutical and life sciences business will add new, high growth platforms to GE Medical's diagnostic imaging, services and health care information technology businesses'. GE Healthcare, a UK company, is a unit of General Electric (NYSE: GE). GE Healthcare is a global leader in medical imaging, diagnostic imaging agents, interventional procedures, health care services, and information technology. For more than 100 years, health care providers have relied on GE Medical Systems, now GE Healthcare, for high quality medical technology and productivity solutions. GE Healthcare, headquartered now at the formerly seat of Amersham Healthcare in Great Britain, operates facilities around the world. Global Operations include organizations on the Americas, Europe, and Asia, including India, Japan, Korea China, Thailand and Vietnam

Ultrasound Related Product Lines:
Ultrasound Systems:
LOGIQ 3 LOGIQ 5
LOGIQ® 7 LOGIQ® 9
Voluson 730 Expert LOGIQ Book XP
Vivid 7 Dimension Vivid i
Vivid 4 Vivid 3

Contrast Agents:
TRADE NAME FOR SALE FOR SALE /
DEVELOPMENT
DEVELOPMENT
Sonazoid®
Optison™

Contact Information:
ONLINE www.gehealthcare.com
CONTACT INFO PAGE www.gehealthcare.com/contact
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• View the NEWS results for 'GE Healthcare' (15).Open this link in a new window.

• View the DATABASE results for 'GE Healthcare' (14).Open this link in a new window.

 Further Reading:
  News & More:
Nycomed Amersham and Mallinckrodt Agree on Ultrasound Patent Settlement and Announce Joint Development of Existing Ultrasound ProductsOpen this link in a new window
   by www.prnewswire.com    
IMCOR Pharmaceutical Co., Alliance Pharmaceutical Corp., Molecular Biosystems, Inc. and GE Healthcare Ltd., Inc. Enter Into Cross-Licensing Agreement for Ultrasound Contrast PatentsOpen this link in a new window
   by www.prnewswire.com    
Grating-Lobe ArtifactInfoSheet: - Artifacts -
Intro, 
Artifacts, 
ReductionMRI Resource Directory:
 - Artifacts -
 
The dimension of the ultrasound beam and the transducer array are the origin of grating-lobe artifacts (also called side lobe artifact). Grating lobes as side lobes are off-axis secondary ultrasound beams projecting at predictable angles to the main lobe. Side lobes are too small to produce important artifacts.
See also Apodization, and Subdicing.
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• View the DATABASE results for 'Grating-Lobe Artifact' (3).Open this link in a new window.

Gray ScaleInfoSheet: - Modes - 
Intro, 
Basic Modes, 
Doppler Modes, 
Contrast ModesMRI Resource Directory:
 - Modes -
 
Gray scale [also grayscale, grey scale = brit.] produces basically black and white images with series of shades of gray. Solid areas appear white and fluid areas appear black, varying from black at the weakest intensity to white at the strongest. Gray scale resolves artifacts as small as 1 mm. The display is made by transmitting bursts of energy and analyzing the returning signal. Gray scale pictures are limited to the gray scale tones; color pictures display more information because the color is added to the gray scale.
Most ultrasound contrast agents also improve gray scale visualization of the flowing blood to such a degree that the tissue echogenicity increases. Gray scale enhancement of flow in an organ promises to improve lesion detection, along with the ability to differentiate between normal and abnormal areas, using many of the criteria already routinely used in CT and MRI.
See also Compress, Densitometry, Triplex Exam and QB-Mode.
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• View the NEWS results for 'Gray Scale' (1).Open this link in a new window.

• View the DATABASE results for 'Gray Scale' (29).Open this link in a new window.

 Further Reading:
  News & More:
Renal Transplant Imaging and Intervention: Practical Aspects - 2Open this link in a new window
Tuesday, 11 August 1998   by www.radiology.co.uk    
US Resources  
Modes - Fetal - Hospitals - Directories - Pediatric - UltraSound Technician and Technologist Career
 
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