Positron-emission tomography (PET) and single-photon-emission computed tomography
(SPECT) are well-established nuclear-medicine imaging methods used in modern medical …

For radiological diagnosis and radionuclide therapy, X-ray and gamma-ray imaging
technologies are essential. Single-photon emission tomography (SPECT) and positron …

Compton imaging exploits inelastic scattering, known as Compton scattering, using a
Compton camera consisting of a scatterer detector in the front layer and an absorber …

Positron emission tomography (PET) is considered an important and powerful tool for
molecular imaging and medical diagnosis with its high sensitivity. Further, single-photon …

We have been developing a medical imaging technique using a Compton camera. This
study evaluates the feasibility of clear imaging with 99m Tc and 18 F simultaneously, and …

Compton imaging or Compton camera imaging has been studied well, but its advantages in
nuclear medicine and molecular imaging have not been demonstrated yet. Therefore, the …

We proposed a concept of whole gamma imaging (WGI) that utilizes all detectable gamma
rays for imaging. An additional detector ring, which is used as the scatterer, is inserted in the …

The OpenPET geometry is our new idea to visualize a physically opened space between
two detector rings. In this paper, we developed the first small prototype to show a proof-of …

In recent years the use of medical images in healthcare has grown considerably, mainly due
to the rapid evolution of imaging techniques. Now, it is usual for patients to be imaged …

Molecular imaging by PET is a powerful tool in modern clinical practice for cancer diagnosis.
Nevertheless, improvements are needed with respect to the spatial resolution and sensitivity …