Article
Medicine, General & Internal
Tomasz Jadczyk, Jiri Wolf, Martin Pesl, Filip Soucek, Frantisek Lehar, Jiri Jez, Tomas Kulik, Bohdan Tyshchenko, Silvie Belaskova, Petr Ourednicek, Guido Caluori, Miroslav Novak, Zdenek Starek
Summary: This study developed and validated low-dose CT scanning protocols of the left atrium for radiofrequency catheter ablation (RFA) guidance. Optimized scanning protocols significantly reduced radiation dose without affecting contrast media and signal-to-noise ratio.
Article
Multidisciplinary Sciences
Kazuta Yamashita, Kosaku Higashino, Hiroaki Hayashi, Kazuki Takegami, Fumio Hayashi, Yoshihiro Tsuruo, Koichi Sairyo
Summary: This study measured individual organ doses during CT scanning and found that the doses for whole-body routine CT protocols were generally below 20 mGy, indicating relatively low radiation exposure. Surface/shallow organs had higher doses than deep organs, and internal organ doses were significantly higher during whole-body scans compared to abdominal scans. This information provides valuable insights for considering CT examinations in daily clinical situations.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Brecht Van Berkel, Gwendolien Smets, Gertjan Van Schelverghem, Elien Houben, Dieter Peuskens, Thomas Daenekindt, Eveleen Buelens, Frank Weyns, Joris Nens, Albrecht Houben, Sofie Van Cauter
Summary: In this study, the use of iCT was found to significantly reduce radiation exposure to operating room staff, but increase the radiation dose to the patient and prolong operative time in posterior intervertebral lumbar fusion procedures compared to C-arm fluoroscopy.
APPLIED SCIENCES-BASEL
(2021)
Article
Clinical Neurology
Sebastian Zensen, Nika Guberina, Marcel Opitz, Martin Koehrmann, Cornelius Deuschl, Michael Forsting, Axel Wetter, Denise Bos
Summary: This study evaluated the radiation exposure of CT protocols for suspected acute stroke and established diagnostic reference levels. The results showed that additional CT techniques such as CTA and CTP contribute significantly to the total radiation exposure in the assessment of acute stroke.
Review
Medicine, General & Internal
Mandeep Garg, Vahid Karami, Javad Moazen, Thomas Kwee, Ashu Seith Bhalla, Daryoush Shahbazi-Gahrouei, Yu-Hsuan Joni Shao
Summary: Since the COVID-19 outbreak, there has been a significant increase in CT scans for the detection of lung disease. However, CT scans expose patients to ionizing radiation, which can increase the risk of cancer. This review discusses the known health effects of radiation, the risk of radiation-induced cancer at CT scan doses, and the potential increase in cancer incidence from CT scans performed during the COVID-19 pandemic.
Article
Medicine, General & Internal
Anne-Claire Ortlieb, Aissam Labani, Francois Severac, Mi-Young Jeung, Catherine Roy, Mickael Ohana
Summary: This study assessed the impact of patient's morphotype on image quality and diagnostic performance of Ultra-Low-Dose (ULD) chest CT. It found a negative correlation between Body Mass Index (BMI) and image quality, but no correlation with diagnostic performance, suggesting a potential use of ULD protocol in obese patients.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Medicine, General & Internal
Sebastian Zensen, Denise Bos, Marcel Opitz, Michael Forsting, Nika Guberina, Cornelius Deuschl, Axel Wetter
Summary: CT myelography (CTM) is a diagnostic technique used to evaluate spinal pathologies, and this study aimed to examine radiation exposure, establish diagnostic reference levels (DRLs), and compare radiation doses between single- and dual-source examinations, as well as different CTM protocols. The study found that radiation exposure in CTM varies depending on anatomical location, with high image quality achieved across all anatomical regions.
Article
Medicine, General & Internal
William McKleroy, Tracie Shing, Wayne H. Anderson, Mehrdad Arjomandi, Hira Anees Awan, Igor Barjaktarevic, R. Graham Barr, Eugene R. Bleecker, John Boscardin, Russell P. Bowler, Russell G. Buhr, Gerard J. Criner, Alejandro P. Comellas, Jeffrey L. Curtis, Mark Dransfield, Claire M. Doerschuk, Brett A. Dolezal, M. Bradley Drummond, MeiLan K. Han, Nadia N. Hansel, Kinsey Helton, Eric A. Hoffman, Robert J. Kaner, Richard E. Kanner, Jerry A. Krishnan, Stephen C. Lazarus, Fernando J. Martinez, Jill Ohar, Victor E. Ortega, Robert Paine, Stephen P. Peters, Joseph M. Reinhardt, Stephen Rennard, Benjamin M. Smith, Donald P. Tashkin, David Couper, Christopher B. Cooper, Prescott G. Woodruff
Summary: This study investigates the natural history of individuals with tobacco exposure and preserved spirometry who experience respiratory symptoms. The findings suggest that these individuals do not have accelerated rates of lung function decline or increased incidence of chronic obstructive pulmonary disease (COPD) compared to those without symptoms. However, they do experience significantly more respiratory exacerbations over a median follow-up of 5.8 years.
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Yasunori Nagayama, Makoto Goto, Daisuke Sakabe, Takafumi Emoto, Shinsuke Shigematsu, Narumi Taguchi, Natsuki Maruyama, Sentaro Takada, Ryutaro Uchimura, Hidetaka Hayashi, Masafumi Kidoh, Seitaro Oda, Takeshi Nakaura, Yoshinori Funama, Masahiro Hatemura, Toshinori Hirai
Summary: This study evaluated the impact of deep learning-based reconstruction (DLR) on image quality and radiation dose optimization for multiphase hepatic CT. The results showed that DLR improved the image quality compared to HIR techniques, even at lower radiation doses.
EUROPEAN JOURNAL OF RADIOLOGY
(2022)
Article
Ophthalmology
Orly Weinstein, Maayan Yitshak Sade, Ilan Shelef, Victor Novack, Muhammad Abu Tailakh, Jaime Levy
Summary: The study found an increased risk of cataract associated with head and other body CT scans, but not with neck CT scans.
INTERNATIONAL OPHTHALMOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Georgios Kalarakis, Kostas Perisinakis, Evangelos Akoumianakis, Ioannis Karageorgiou, Adam Hatzidakis
Summary: The study showed that doubling the interscan time interval in CT liver perfusion (CTLP) dynamic studies may reduce radiation exposure without affecting the diagnostic efficiency for hepatocellular carcinoma (HCC) evaluation. However, reducing the acquisition duration by half resulted in significantly increased differences in perfusion parameters of HCCs and deteriorated discriminating efficiency of parametric maps. Modified CTLP acquisition protocols were found to involve 48.5% less patient exposure.
EUROPEAN RADIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Matthias Barral, Francois Gardavaud, Louis Lassalle, Mohamed Ben Ammar, Milan Najdawi, Leo Razakamanantsoa, Raphaele Renard-Penna, Olivier Cussenot, Francois H. Cornelis
Summary: The study found that using large display monitors and cone beam computed tomography can significantly reduce radiation exposure during prostatic arteries embolization (PAE) for benign prostatic hyperplasia. Lower patient BMI, shorter fluoroscopy time, CBCT use, and decreased number of acquisitions were associated with reduced air kerma dosage.
EUROPEAN RADIOLOGY
(2021)
Article
Medicine, General & Internal
Lejla M. Civa, Adnan Beganovic, Mustafa Busuladzic, Merim Jusufbegovic, Ta'a Awad-Dedic, Sandra Vegar-Zubovic
Summary: This study evaluates the dose descriptors and risks associated with CT imaging for diagnosing COVID-19 pneumonia, emphasizing the importance of evaluating radiation exposure parameters, developing dose reduction methods, and radiation protection during the COVID-19 pandemic.
Article
Urology & Nephrology
Claudia Deyirmendjian, Seohyuk Lee, Yasser A. Noureldin, Gyorgy Hegyi, Lawrence Stein, Giovanni Artho, Sero Andonian
Summary: The study found that urologists primarily ordered low-dose CT scans in both phases, and after the LD CT scan protocol was revised in March 2019, there was a significant decrease in mean effective radiation exposure per LD CT. In addition, there were significant differences in mean ERE from LD CT scans between two hospitals in the same health system.
JOURNAL OF ENDOUROLOGY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Shane J. Foley, Ritva Bly, Adrian P. Brady, Steve Ebdon-Jackson, Alexandra Karoussou-Schreiner, Monika Hierath, Jacob Sosna, Boris Brkljacic
Summary: Published literature on CT justification in Europe is limited, with sub-optimal application. This study aimed to investigate CT justification practices in Europe and found variations across countries, with a minority having clinical decision support systems. The use of CT for health screening is not widespread in Europe.
INSIGHTS INTO IMAGING
(2022)