Computed tomography (CT) is one of the most widely used clinical imaging modalities. In
order to increase the sensitivity of CT, small iodinated compounds are used as injectable …

Computed tomography (CT) is a technical and complex diagnostic imaging modality.
Radiologic technologists must understand the technology well enough to optimize dose and …

The International Commission on Radiation Units and Measurements (ICRU), since its
inception in 1925, has had as its principal objective the development of internationally …

Purpose Deep-learning-based attenuation correction (AC) for SPECT includes both indirect
and direct approaches. Indirect approaches generate attenuation maps (μ-maps) from …

Background: Single photon emission computed tomography (SPECT) has limited ability to
identify multivessel and microvascular coronary artery disease. Gamma cameras with …

Background Attenuation correction (AC) using CT transmission scanning enables the
accurate quantitative analysis of dedicated cardiac SPECT. However, AC is challenging for …

Attenuation correction (AC) is essential for quantitative analysis and clinical diagnosis of
single-photon emission computed tomography (SPECT) and positron emission tomography …

With the current advances in imaging technology and changes in patient demographics,
computed tomography (CT) has become an important part of nuclear cardiology practice for …

Recent research in computational imaging largely focuses on developing machine learning
(ML) techniques for image reconstruction, which requires large-scale training datasets …

It has been proved feasible to generate attenuation maps (μ-maps) from cardiac SPECT
using deep learning. However, this assumed that the training and testing datasets were …