Cambridge Research Systems makes a range of high-spec video displays for use in the fMRI scanner. These displays provide factory calibrated color and internally calibrated luminance, making them suitable for the most sophisticated vision science experiments.

FAQ's

BOLDscreen fMRI display (7)

As with some scanners you may be left with a protruding rail or track. For appropriate positioning of the BOLDScreen it is suggested that you purchase a trolley with articulating arm, which will allow for offset fixation and easy adjustment for optimal monitor placement. Please see our trolley/stand options.

Traditionally the BOLDScreen is placed at the rear of the scanner at the end of the bore. The monitor can be viewed with an OEM “viewing mirror” that mounts to the headcoil, these are usually included from the manufacturer of the headcoil. Depending on the size of your scanner’s bore (e.g. 60, 70cm), you may need to offset the BOLDScreen for full field of view. For a 60cm bore scanner, you may have to displace the position roughly one foot.

Most “standard” PC’s are adequately suited for driving the BOLDScreen 32 if they offer a dual-link DVI output. For laptops this can often be achieved by the use of a DisplayPort to Dual-Link DVI adapter. It is important to determine in advance whether your laptop offers a DisplayPort output for this purpose. If you are using a desktop PC then be certain that you have a video card with dual-link DVI, I only repeat this as it is rather important. If you are going through the process of setting up a new PC, I would suggest going with an NVIDEA video card as these are best suited for full functionality (e.g. dithering schemes) of the BOLDScreen 32.

No, the power supply is meant to be powered from outside the MR scan room. A voltage converter unit (VCU) with RF filter is supplied which is to be mounted within the penetration panel, most often between the equipment room and scan room. An 11mm hole (BNC sized) is required for the mounting of the VCU.

The BOLDScreen 32 comes standard with 30 meters of fiber optic cabling (duplex LC/SC), other lengths are possible as this fiber optic cable is available online through various sources. Some choose to run this around the periphery of the scan room, while others prefer to run it through conduit or channeling in the ceiling and have it dropped at the rear of the bore.

The CRS BOLDScreen units have been specifically designed to be directly placed at the rear of the bore of the scanner, without any distance constraints. The BOLDScreen 32 is compatible with scanners with a field strength up to 7T, while the BOLDScreen 23 and 24 are compatible with those up to 3T.

BOLDScreen 32 setup, this consist of: monitor, fiber optic cabling (30 meters), DVI/fiber optic converter, adjustable height aluminum tripod/stand, and power supply and MR friendly converter unit. Often users will opt to purchase a trolley for portability and versatility in setup.

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