As radiation research and cancer biology reach new horizons, the need for improved pre-clinical methodology has become paramount. Targeted radiation is a proven method of treating cancer clinically, and is key component in treatment regimens in over 60% of cancers worldwide. In order to keep pace with clinical practice, cancer researchers must mimic clinical practice as close as possible. The SARRP enables clinical researchers to perform clinically relevant radiation experiments which yield relevant and translational data.
The SARRP delivers targeted radiation to pre-clinical animal models with an accuracy equivalent to clinical radiotherapy. Using an on-board high resolution cone beam-CT imaging and 3-D bioluminescent tomographic imaging, the SARRP can target micro beams (down to 0.5mm) of radiation to an accuracy of 200um. The SARRP allows the user to image the animal, contour the tumour/target and organs at risk, evaluate the dose, and deliver the desired treatment.
The SARRP enables researchers to increase experimental reproducibility through integrated molecular imaging and radiation delivery which seamlessly delivers conformal dose to a prescribed target. The SARRP is dynamic and flexible in design to aid researchers in achieving experimental goals.
Xstrahl has recently developed the industry’s first 3D bioluminescent optical imaging modality. MuriGlo pairs seamlessly with SARRP allowing for the accurate identification of a soft tissue tumor in a soft tissue microenvironment through bioluminescent imaging. Through a specialized algorithm, MuriGlo can identify the lesion by center of mass, and fuse the target to the reconstructed cone beam CT for accurate targeting.
SARRP utilizes a fully integrated, standalone treatment planning software called MuriPlan. This software allows investigators to control all hardware aspects and systems components from the computer control station. Through this single piece of software, the researcher can acquire a CT, register images, contour the target or normal tissue, define the isocenter, design beam arrangements, calculate and verify dose, save treatment plans for later use/reference, and execute the designed treatment.
SARRP enables investigators from various backgrounds to perform clinically relevant research in a preclinical laboratory setting. The ability to mimic clinical radiation practice in an in vivo model allows for investigation of research end points that have not been attainable up until now. Adopting clinical techniques like imaging, target localization, and avoidance of normal tissue toxicity will only drive the field and understanding of radiation effects to the tumor forward.
SARRP will greatly improve the accuracy and reproducibility of in vitro experiments. Most radiation research systems have a fixed X-ray source, which can result in beam attenuation and uneven dose distribution to the cell suspension. The SARRP’s 360 degree rotating gantry allows investigators to account for this by giving the option of irradiating from above and underneath the flask. This technique ensures a uniform dose to all suspended and adherent cells.
For those experiments that require stacking plates, the stack can be irradiated from top and bottom, or side to side. In this configuration, the dose uniformity is within 6% across a 6cm stack of plates; which vastly increases throughput while maintaining a constant dose.
SARRP enables researchers to image and target both ectopic and orthotopic tumors in small animal models in a way that has previously been unattainable. The ability of the gantry to rotate 360°, and bed movement in the X, Y, Z, and Θ direction allows for non-coplanar beam delivery from any angle. With the ability to image and irradiate up to 3 mice (or 1 rat) simultaneously, SARRP allows investigators to perform accurate and reproducible experiments in a high throughput manner. Aside from high resolution cone beam CT imaging. SARRP also employs portal imaging which provides fluoroscopic X-ray imaging in a ‘beams eye view’. Technological advancements of the system such as the motorized variable collimator and respiratory gating system allow for a more dynamic and conformal dose to the targeted area.
The SARRP irradiation platform cabinet has been developed to match the standard of care for radiation treatments in a pre-clinic setting, and is designed to fit through a standard doorway, lead shielded, has a motorised 360 degree rotating gantry and a 4-dimensional plane robotic stage.
Please have a closer look at the main parts of the SARRP system by pointing at different areas in the picture on the right.
There have been over 100 articles published with the help of the SARRP. For the full list of articles please click here to be directed to our publication resource page.
In order to drive the field of pre-clinical radiation biology forward, technology must keep pace with clinical advancements. At Xstrahl, we’re dedicated to developing new and cutting-edge technology that allow for more precise and dynamic experimental methods. These company values can be seen in the development of the motorized variable collimator, respiratory gating system, and MuriGlo. All of which can be easily integrated into SARRP in a “plug-and-play” function of use.
External Dimensions: W-148 cm, D-104 cm, H-205 cm
Total Weight Shielded Cabinet: 2540 kg Total Weight
Unshielded Cabinet: 454 kg
Treatment distances: 30-38cm or 80cm FSD
Maximum Field Size: 18 cm circle at 35 cm FSD
Tube Voltage: 20-220 kV
Tube Current: 0-25 mA
Maximum Power Output: 3 kW
Mobile Built on wheels for simple transport
Manual Stage Z direction manual movements
Control Interface Operates X-rays
The SARRP range of research platforms delivers targeted radiation to pre-clinical models with an accuracy equivalent to clinical radiotherapy. Check out the rest of our Life Sciences range.
Prior to acquisition of the SARRP we were left with an obvious and significant void in our pre-clinical arsenal to investigate existing and novel cancer therapies. The technological similarity of the SARRP with the medical systems in our clinic and availability of ongoing technical support from Xstrahl were decisive factors. The SARRP forms an integral part of our translational research pipeline and will greatly expand the capacity, potential and quality of our cancer and radiation research.
We have found SARRP an extremely valuable resource for pre-clinical work in which we aim to mimic clinical treatment regimens as closely as possible. SARRP enables efficient, accurate and reproducible pre-clinical radiotherapy that is especially valuable for assessing drug-radiation combinations in realistic schedules. We have been very impressed by the user-friendly interface in MuriPlan, which is straightforward for users and can be interfaced with imaging modalities such as MRI and bioluminescence for optimised image-guided planning. SARRP has become central to our translational pipeline in radiation biology and comes with extremely good support and maintenance to take the stress out of running large pre-clinical experiments.
SARRP has really made a significant impact in our lab, the ability to accurately target small volumes with image guidance hasn’t been possible before and we are now constantly evolving our approaches to leverage the technology to its maximum potential. Clearly our ability to delivery clinically relevant radiotherapy treatments in preclinical models has taken a major step forward, it up to us as a research community to translate this to the next generation of clinical innovatives
The irradiation devices developed by Xstrahl for radiobiological research, both in vitro and in vivo, certainly are of outstanding quality in this field of research. We use the Xstrahl SARRP system successfully for our in-vivo-research on orthotopic small animal tumour models. With this system we are able to mimic the clinical situation and especially irradiation in mice much more precisely and easier than in former times. So it helps us to make our research more reliable and more clinically relevant. From my point of view, the customer service provided by Xstrahl is close to perfect. All in all, the possibilities provided by Xstrahl's irradiation equipment, e.g to closely mimic the radiotherapeutic clinical routine in small animal models (CT-based treatment planning with the SARRP system) is absolutely outstanding.
We have been using the CIX2 X-ray cabinet for some years for cell culture experiments, and it is one of the most frequently used machines in our lab. In my opinion, the x-ray irradiator is a great tool for the irradiation of cells in our research lab. The cabinet runs very stable and is easy to operate (even for non-experienced visitors) and offers all options needed for our research making it extremely user-friendly. The possibility to change the filters quickly and to work with different distances away from the x-ray tube markedly enlarges the spectrum of experiments, which can be performed, and the safety aspect is hereby a big advantage. Furthermore, the technical support of X-Strahl is an outstanding example of good customer service.