Philips Medical Systems to launch novelties in 3D rotational angiography and magnetic resonance imaging

Eindhoven 11 May 2002Philips Medical Systems, a division of Royal Philips Electronics, is breaking new boundaries with its Integris 3D-RA rotational angiography interventional tool. The Integris 3D-RA is now compatible with the complete Integris Allura I.I. based series (9", 12" and 15"), which is unique in the market. The company also introduced the Intera I/T, an MR system for Intervention and Therapy.


The Integris Allura is especially designed for 3D imaging and next to its fastest rotational angiography speed in the market, it now also offers an incredible speed in the 3D reconstruction, a first reconstruction of 120 images in less than 75 seconds. Another strong concept of the Allura is the ceiling mounted design, which in combination with the choice between roll and propellor rotational angiography movement, offers a unique whole body coverage, opening up a wealth of new possibilities for non-neuro imaging, including AAA or abdominal aortic aneurysm, renal and iliac procedures.

Clinical partners involved in the development of the Integris Allura 3D-RA interventional tool include Fondation A. De Rothschild in Paris, France; St. Antonius Hospital in Nieuwegein, The Netherlands; Emory University Hospital in Atlanta; Lahey Clinic in Boston; and Miami Cardiac and Vascular Institute in Miami, all three in the USA.

Professor Jacques Moret, Neuroradiology Department Fondation A. De Rothschild, Paris, commented: "Access to better images is key to improving our treatment strategies and greatly speeds up examination time. Even the actual reconstruction time of Philips' 3D-RA tool is impressive at 120 images in under 75 seconds. Speeding exam time is clearly very attractive to us, offering clear benefits in terms of increasing patient throughput and also in helping us reduce dose and the use of contrast media, which could potentially harm the patient."

As a specialist in interventional angiography systems, Philips drew on the experiences and findings of its clinical partners to improve its existing Integris 3D-RA system. The result is a multi-functional tool compatible with all Integris Allura systems (9", 12" and 15") to give 3D insight into vascular pathologies anywhere in the body from a single rotational angiographic x-ray acquisition. The new 3D-RA system enables the visualisation of very complex vasculature, thanks to its high image quality and the ability to select the optimal stand projections for treatment.

"We are confident that our upgraded 3D-RA interventional tool matches the realities of clinicians in the field. It was designed by and for doctors", explained Bert van Meurs, global marketing director for cardiovascular imaging systems at Philips. "Once the technology had proven itself in neuro-applications, we made some significant improvements in line with the needs of our clinical partners. Whole body imaging, speed of reconstruction, and compatibility with all our Integris Allura systems were key challenges we have overcome."

The Integris Allura is specifically designed for 3D reconstructions, with the highest rotational angiography speed of 55 degrees per second and an increased reconstruction speed giving clinicians fast access to imaging information. The Allura offers both propellor and roll movement to cover any anatomy including neuro, carotids, kidneys, abdomen, and peripheral vasculature.

Visualisation in three dimensions has become a vital aid to a clinician's decision making process, with physicians now able to view high quality, 3D images in real time. They can now monitor treatment in progress, such as the deployment of embolisation material and visualising coils, clips, and stents. This ability strongly reduces guesswork during interventions, significantly reducing patient risk and facilitates the treatment of more difficult pathologies through more comprehensive visualisations. At the same time, there is significant reduction in exam time, x-ray dose, and the use of contrast media by eliminating the need for multiple DSA-Fluoro exposures.

Philips has been the world leader in high field interventional Magnetic Resonance (MR) since 1995 when it introduced a 1.5 T system dedicated to intervention. As a 1.5 T MR scanner optimised for interventional procedures, the Intera I/T has been used in various research programmes at internationally acclaimed sites, including the University of California, San Francisco (UCSF) and the University of Minnesota, Minneapolis. The 1.5 Intera I/T now brings the full range of MR capabilities into the surgical and interventional arena.

With a magnet that has a shorter and more open bore than any other interventional MR scanner, the Intera I/T sets the standard for ease-of-use and access to the patient. Surgeons and interventional radiologists can perform interventions either in-bore, just outside the magnet or, if using non-MR compatible instruments, outside the five gauss line. The high-resolution imaging obtainable when using high-field MR provides optimal visualisation of structures.

When combined with real time imaging, the scanner enables clinicians to investigate and develop strategies for the placement of catheters under MR guidance. Interactive scanning with the Intera I/T provides real time control of image contrast and scan-plane geometry which together with superior angiographic capabilities enables therapeutic planning and endovascular procedures to be executed effectively.

The modular design of the Intera I/T protects the value of the investment made by purchasers. When not being used for interventional work, the system can be employed for routine diagnostic examination, enabling it to be kept in constant use regardless of the case mix.

Philips helps hospitals to move into and develop an interventional MR programme. Dr. Joop van Vaals, director of Intervention and Therapy MR at Philips Medical Systems stated: "Either as initial installation, or via an upgrade, the Intera 1.5 T scanner can be enhanced to enable interventional work with the Intera I/T Standard, the Intera I/T Neurosurgery or the Intera I/T Cardiovascular configuration without any compromise in functionality."

Leslie Versweyveld

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