Medical Ultrasound Imaging
Sunday, 12 May 2024
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In 1918, Philips started with their first medical X-ray tube. Philips Medical Systems now is a global leader in diagnostic imaging systems, healthcare information technology solutions, and patient monitoring and cardiac devices. Philips also provides customer services such as financing, consultancy and maintenance & repair.Philips lacked in the field of ultrasound till 1998. By buying ATL (Bothell, Washington) in this year Philips establishing itself as an important player in ultrasound. In 2001 Philips also acquired Agilent (formerly Hewlett-Packard; Andover, Massachusetts), a market leader in the cardiology and vascular ultrasound systems (HP2000 to HP5500, now Sonos 2000 to Sonos 5500). Philips Medical System is the diagnostics business of Royal Philips Electronics of the Netherlands, one of the world's biggest electronics companies and Europe's largest. Philips is quoted on the NYSE (symbol: PHG), London, Frankfurt, Amsterdam and other stock exchanges. On October 19, 2001, Philips Medical Systems completed a 3-year acquisition strategy through its purchase of Marconi Medical Systems. Marconi Medical Systems offered leading multislice CT, MRI, and Nuclear Gamma Camera systems to medical institutions around the world. As well as new 3.0T developments, Philips is also in collaboration with researchers at the University of Nottingham, with the intention of developing an ultrahigh field strength clinical 7.0T whole body MR system. Ultrasound Systems:
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(PACS) A system used to communicate and archive medical imaging data, mostly images and associated textural data generated in a radiology department, and disseminated throughout the hospital. A PACS is usually based on the DICOM (Digital Imaging and Communications in Medicine) standard. The main components in the PACS are: acquisition devices where the images are acquired;
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short and longer term archives for storage of digital and textural data;
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a database and database management;
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diagnostic and review workstations;
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software to run the system;
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a communication network linking the system components;
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interfaces with other networks (hospital and radiological information systems).
Acquisition devices, which acquire their data in direct digital format, like a MRI system, are most easily integrated into a PACS. Short term archives need to have rapid access, such as provided by a RAID (redundant array of independent disks), whereas long term archives need not have such rapid access and can be consigned, e.g. to optical disks or a magnetic. High speed networks are necessary for rapid transmission of imaging data from the short term archive to the diagnostic workstations. Optical fibre, ATM (asynchronous transfer mode), fast or switched Ethernet, are examples of high speed transmission networks, whereas demographic textural data may be transmitted along conventional Ethernet. Sophisticated software is a major element in any hospital-wide PACS. The software concepts include: preloading or prefetching of historical images pertinent to current examinations, worklists and folders to subdivide the vast mass of data acquired in a PACS in a form, which is easy and practical to access, default display protocols whereby images are automatically displayed on workstation monitors in a prearranged clinically logical order and format, and protocols radiologists can rapidly report worklists of undictated examinations, using a minimum of computer manipulation. •
(RIS) Radiology information system means a computer system that stores and processes the information for a radiology department and can be linked to the hospital information system. The principal purpose of a RIS consists of taking over the general functions of the administration inclusive planning, monitoring and communication of all data regarding patients and its investigations in the radiology. The correct images should reach, at the correct time, the correct users. For this reason the RIS must contain a workflow management in order to simplify and steer the data flow at the individual view stations or devices (laser cameras etc.). The Radiology Information System is optimally complemented with a Picture Archiving and Communication System (PACS). RIS Tasks:
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collection, storage and administration of patient master data;
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archives administration;
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treatment of requirements;
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work scheduling;
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account;
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communication (with the hospital information system, MRI scanner, other devices etc.);
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statistic evaluations.
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From Bayer Schering Pharma AG:
Sonovist® (sometimes found as Sonavist) is an investigational ultrasound contrast agent with a biodegradable synthetic capsule filled with sulphur hexafluoride. The biodegradable shell of Sonovist is so stable that it can be taken up by Kupffer cells of the reticuloendothelial system or accumulate in the sinusoids. Therefore, Sonovist® has an additional hepato-splenic parenchymal phase following the blood pool phase, analog to the superparamagnetic iron oxide agents used in liver MRI. The microbubbles are stationary in this phase and generate no conventional Doppler signals. This tissue-specific phase has a variable duration and can be imaged by bubble specific imaging modes.
Drug Information and Specification
RESEARCH NAME
SHU 563A
DEVELOPER
INDICATION
APPLICATION
Intravenous
TYPE
Microbubble
Cyanoacrylate (polymer sheIl)
CHARGE
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Sulphur hexafluoride
MICROBUBBLE SIZE
-
PRESENTATION
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STORAGE
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PREPARATION
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DO NOT RELY ON THE INFORMATION PROVIDED HERE, THEY ARE
NOT A SUBSTITUTE FOR THE ACCOMPANYING PACKAGE INSERT! •
Transurethral echography or sonography is used to detect small tumors of the urinary bladder or to visualize the urethra and surrounding muscles with special transducers. The bladder neck can be visualized using a transrectal probe. In addition, high intensity focused ultrasound provides treatment of benign prostatic hyperplasia and adenocarcinoma of the prostate. Small catheter-based sectored tubular or planar transducers with highly directional energy deposition and rotational control are used for precise treatment. Regions of the prostate can be selective coagulatet while monitoring and controlling the treatment with MRI. See also Urologic Ultrasound, Lithotripsy, Reflux Sonography, Ultrasound Therapy, Interventional Ultrasound and Thermotherapy.  Further Reading: News & More:
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[last update: 2023-11-06 01:42:00]