[en] The authors investigated standard SPECT techniques (rotating gamma cameras, multi-hole collimators, and filtered backprojection reconstruction) for imaging α-emitting astatine-211 distributions. The capability of imaging this nuclide would allow in vivo evaluation of the distribution and stability of potential ²¹¹At-labelled radiotherapeutic agents. ²¹¹At decay yields x-rays in the 77-92 keV range and 500-900 keV gamma rays. This study evaluates the feasibility of SPECT imaging using the x-ray emissions of ²¹¹At. Several collimators were evaluated with the determination that the medium-energy collimators used are suitable, with 7% penetration (uncollimated counts versus collimated counts). Several phantoms were imaged and attenuation coefficients measured (narrow-beam μ = 0.182 cm^-1 for 77-80 keV x-rays in water). Reconstructed images demonstrate qualitative capabilities and a simple study demonstrates good correction for attenuation and scatter. (author)