2 results about "Spect imaging" patented technology

The invention relates to an SPECT imaging agent for FAP-alpha specific tumor diagnosis. The imaging agent is formed by taking a micromolecular FAP-alpha inhibitor of a modified N-4-quinolyl-glycine-(2S)-cyanoproline skeleton as a precursor compound, taking 99mTc as radionuclide and taking N-tris (hydroxymethyl) methylglycine (Tricine) and triphenylphosphine tri-m-sodium sulfonate (TPPTS) as synergistic ligands. Compared with the prior art, the imaging agent has high sensitivity, more excellent in-vivo biological distribution is shown, compared with the prior art, the complex has the advantagesof higher tumor uptake and tumor / organ uptake ratio, more stable coordination property, and excellent in-vivo and in-vitro stability. Due to the obvious coordination structure characteristics of theimaging agent, a one-step marking kit technology can be used, and the imaging agent has better druggability and is suitable for industrial production and clinical popularization.

The invention discloses a multi-point imaging rapid maneuvering control method for a low-orbit optical remote sensing satellite, belongs to the technical field of aerospace, and aims to control the attitude of the satellite to an expected value in the shortest time under the condition that the reaction flywheel moment of the satellite and the angular momentum of the satellite are limited, so thatan optical load has an imaging state. The method comprises the following steps: carrying out kinematics and dynamics modeling on a low-orbit optical remote sensing satellite; carrying out satellite attitude planning; converting the attitude planning result from an orbit coordinate system to an inertial coordinate system; establishing a satellite error kinematics kinetic equation in combination with attitude planning information; dividing the attitude of the satellite into an inner loop and an outer loop, establishing a controller, and realizing multi-point imaging rapid maneuvering control ofthe low-orbit optical remote sensing satellite. The method has both attitude maneuver rapidity and high-precision attitude stability, in the attitude maneuver process, the satellite attitude can stably converge to the planned attitude, and the control method is simple in structure, easy to implement and capable of being applied to engineering practice.