CT scans are the standard-of-care for many clinical ailments, and are needed for treatments
like external beam radiotherapy. Unfortunately, CT scanners are rare in low and mid-
resource settings due to their costs. Planar X-ray radiography units, in comparison, are far
more prevalent, but can only provide limited 2D observations of the 3D anatomy. In this
work, we propose a method to generate CT volumes from few (< 5) planar X-ray
observations using a prior data distribution, and perform the first evaluation of such a�…

CT scans are the standard-of-care for many clinical ailments, and are needed for treatments
like external beam radiotherapy. Unfortunately, CT scanners are rare in low and mid-
resource settings due to their costs. Planar X-ray radiography units, in comparison, are far
more prevalent, but can only provide limited 2D observations of the 3D anatomy. In this
work, we propose a method to generate CT volumes from few (< 5) planar X-ray
observations using a prior data distribution, and perform the first evaluation of such a�…