Full FAQ List by Topic
BOLDfonic fMRI audio (6)
Will you be able to modify/drill my penetration panel to allow for the two BNC connectors to mount during installation of the equipment?
Typically it is not suggested to run the cabling overhead towards the MR scanner as there is potential of coupling with the RF cables of the scanner. If the aim is to reduce stray cabling along the floor it is suggested that the headphones are stored/hung with excess fiber cabling “looped” as to keep it out of the way.
I noticed that the standard setup does not include a patient microphone; is there one available for bi-directional communication?
Yes! While not included as standard there is an option for an Optoaccoustics patient microphone available in both basic and noise canceling models. Please request pricing if interested!
Yes! There are headphones that span the full range of infants through adults. Additionally there are insert (air-tube) earphones that can be used for all ages, and for all headcoils.
Shielded BNC cables are routed through a filter box/transformer. The supplied BNC connectors will need to be mounted within your penetration panel, this will require two 11mm holes for this purpose, the supplied RF filters will be connected on the MR side with 9 meters of cabling to connect to the headphones. Typically cables run from the penetration panel located between the control room and scan room, however extending the BNC cabling may also be possible to route it from the equipment room.
The BOLDfonic system is comprised of the MR Confon main console, an operator microphone, a set of patient/participant insert earphones, control room monitoring speakers, along with all audio cables, connectors, and filters necessary for full installation — just supply the audio output from your PC or alternative source via a ⅛ in. audio cable or SPDIF output. Keep in mind that the BOLDfonic system includes the AudioFile unit which can function as an external USB audio card.
BOLDscreen fMRI display (7)
Can I put the BOLDScreen at the end of the bore if the scanner has a bed with a track protruding from the rear of the bore?
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.
PowerMAG TMS (4)
You may perform a wide variety of protocols using the PowerMAG system; ppTMS, rTMS, TBS, and even Quattro pulse. Please refer to the following chart to determine which platform is most appropriate for your research.
|Stimulators||PowerMAG lab 30||PowerMAG lab 100||PowerMAG EEG 30||PowerMAG EEG 100||PowerMAG ppTMS||PowerMAG QPS|
|Characteristic||Economic research||Basic research with TBS||EEG research||Advanced real-time EEG||All in one||qTBS stimulation|
|Stimulation frequency (Hz)||30||100||30||100||100||100 (666 in bursts)|
|Long interval ppTMS||Yes||Yes||Yes||Yes|
|Short interval ppTMS||Yes|
|Coil current invertable||Yes||Yes||Yes||Yes||Yes||Yes|
The coils used with the PowerMAG system are in fact passively cooled, they utilize quality copper windings with excellent heat dispersion properties. The coils are then placed within a wax like medium that further enhances heat dissipation, as the coil heats up the internal medium changes to a liquid state effectively “absorbing” much of the heat. This is often desired over coils that require additional components for cooling (e.g. fans, pumps, and plumbing), and are considered more robust from an engineering perspective. Additionally there is no maintenance required for our passively cooled coils, nor is there any pre-defined factory set limit to the life of the coil in terms of number of pulses, nor age.
This really comes down to the properties of the coil utilized. The two main style of stim coils used within the TMS field are figure 8 and round, with figure 8 often being preferred for focal targeting. Typically with the figure 8 coil you would get greatest stimulation at a depth of roughly 2- 2.5cm, with a round style you may achieve a bit more penetration ~2.5-3cm.
Excellent question! PowerMAG is strictly for research purposes, meaning there is no FDA approval on the device, thus it may not be used for the diagnosis or treatment of any pathology. Clinical research is still possible, however must follow the strict adherence to the current guidelines imposed. Chances are, if you have an IRB protocol, then you can use the PowerMAG system for your research.
For an FDA approved TMS solution for use in treatment protocols, you may find the Mag and More Apollo TMS Therapy System of interest.