Standardization and quantitative imaging with photon-counting detector CT

CH McCollough, K Rajendran, S Leng - Investigative radiology, 2023‏ - journals.lww.com
Computed tomography (CT) images display anatomic structures across 3 dimensions and
are highly quantitative; they are the reference standard for 3-dimensional geometric …

Photon-counting CT in thoracic imaging: early clinical evidence and incorporation into clinical practice

JG Fletcher, A Inoue, A Bratt, KK Horst, CW Koo… - Radiology, 2024‏ - pubs.rsna.org
Photon-counting CT (PCCT) is an emerging advanced CT technology that differs from
conventional CT in its ability to directly convert incident x-ray photon energies into electrical …

Dual-energy CT–based monochromatic imaging

L Yu, S Leng, CH McCollough - American journal of Roentgenology, 2012‏ - ajronline.org
OBJECTIVE. We summarize how virtual monochromatic images are synthesized from dual-
energy CT using image-domain and projection-domain methods. The quality of virtual …

Photon counting CT: clinical applications and future developments

SS Hsieh, S Leng, K Rajendran, S Tao… - IEEE transactions on …, 2020‏ - ieeexplore.ieee.org
The use of a photon counting detector in CT (PCD CT) is currently the subject of intense
investigation and development. In this review article, we will describe potential clinical …

Milestones in CT: past, present, and future

CH McCollough, PS Rajiah - Radiology, 2023‏ - pubs.rsna.org
In 1971, the first patient CT examination by Ambrose and Hounsfield paved the way for not
only volumetric imaging of the brain but of the entire body. From the initial 5-minute scan for …

Virtual monochromatic imaging in dual‐source dual‐energy CT: radiation dose and image quality

L Yu, JA Christner, S Leng, J Wang… - Medical …, 2011‏ - Wiley Online Library
Purpose: To evaluate the image quality of virtual monochromatic images synthesized from
dual‐source dual‐energy computed tomography (CT) in comparison with conventional …

Managing radiation use in medical imaging: a multifaceted challenge

H Hricak, DJ Brenner, SJ Adelstein, DP Frush, EJ Hall… - Radiology, 2011‏ - pubs.rsna.org
This special report aims to inform the medical community about the many challenges
involved in managing radiation exposure in a way that maximizes the benefit-risk ratio. The …

Computed tomography and patient risk: Facts, perceptions and uncertainties

SP Power, F Moloney, M Twomey… - World journal of …, 2016‏ - pmc.ncbi.nlm.nih.gov
Since its introduction in the 1970s, computed tomography (CT) has revolutionized diagnostic
decision-making. One of the major concerns associated with the widespread use of CT is the …

Achieving routine submillisievert CT scanning: report from the summit on management of radiation dose in CT

CH McCollough, GH Chen, W Kalender, S Leng… - Radiology, 2012‏ - pubs.rsna.org
This Special Report presents the consensus of the Summit on Management of Radiation
Dose in Computed Tomography (CT)(held in February 2011), which brought together …

How I do it: managing radiation dose in CT

WW Mayo-Smith, AK Hara, M Mahesh, DV Sahani… - Radiology, 2014‏ - pubs.rsna.org
Computed tomography (CT) is an imaging test that is widely used worldwide to establish
medical diagnoses and perform image-guided interventions. More recently, concern has …