In vivo small animal SPECT/CT Imaging Laboratory

Researchinfrastructure: Equipment

Managing organisational unitFaculty of Pharmacy
Responsible personJ. Arturo Garcia Horsman
Available to users outside UHYes
DescriptionSingle photon emission computed tomography/computed tomography (SPECT/CT) has wide applicability in modern bioscience. It is based on detecting a radioactive labelled tracer in the body of a small animal (rodent) in time in vivo in an non-invasive manner. It is one of the most powerful methods to visualize distribution and elimination of drugs in the body and to study drug-targeting methods aiming at tissue specific drug delivery, including gene transfer in vivo. It can be used to monitor status of lesions in disease models, in vivo receptor binding kinetics, tumour growth and eradication by treatment, metabolic activity of the tissues, and survival and fate of transplanted cells. Important advantages of this technology are, on one hand, the lack of limits in tissue depth for detection, the versatility of radiotracers’ chemistry, and the commercial availability of relatively large number of radiopharmaceuticals for widespread applications. Surpassed in detection limits only by fluorescence-based methods, which can detect tracers at concentrations almost to 2 or 3 orders of magnitude lower than SPECT, but do not offer high quantitation, linearity or enough tissue depth, which is true in the case of SPECT. The combination of SPECT with CT, makes accurate anatomic localisation of the tracer and offers 3-D imaging capability. SPECT/CT has the benefit to image the entire body in real time, in vivo, longitudinally in the same animal, which translates not only in ethical convenience and statistical effectiveness, but also in better cost-effectiveness compared with other non-imaging classical strategies.
Components of the research infrastructureThe laboratory has a state-of-the-art nanoSPECT/CT camera (Mediso, Hungary) in vivo imaging instrument with 4 detectors. It can image mice, rats and rabbits at high resolution (up to 0.5 mm) and high sensitivity (10-9 M, depending of the isotope) with a wide variety of gamma emitters. It can simultaneously image multiple isotopes in the same animal. The instrument co-register high quality CT image, with μm resolution, due to an inbuilt high energy x-ray source.The nanoSPECT/CT camera is housed in a laboratory with appropriate radiation safety measures. The laboratory is licenced for class 2 GMO work and for viral vectors. Finnish Radiation and Nuclear Safety Authority (STUK) has approved the facilities currently as type B/C radioisotope laboratory space. In addition, these rooms in the SPECT/CT laboratory, the facility counts with an adjacent type B radioisotope laboratory, available for a single batch kit preparation of radiotracers.
EmailArturo.Garcia@helsinki.fi
Location
Viikinkaari 1
Biocenter 3
Helsinki
Finland
Phone+358-294159461

ID: 57220304