Article
Radiology, Nuclear Medicine & Medical Imaging
Johan Jendeberg, Per Thunberg, Marcin Popiolek, Mats Liden
Summary: The study validated a quantitative SE-CT method (kNN-ppLapl-maxHU) that can classify UA stones with accuracy comparable to DE-CT.
EUROPEAN RADIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Stefanie J. Bette, Franziska M. Braun, Mark Haerting, Josua A. Decker, Jan H. Luitjens, Christian Scheurig-Muenkler, Thomas J. Kroencke, Florian Schwarz
Summary: In this study comparing PCD-CT and EID-CT in mouse specimens, PCD-CT demonstrated lower image noise, higher SNR, and better edge sharpness compared to EID-CT. Radiologists consistently preferred PCD-CT for visualizing bone details, even in SNR-matched pairs.
EUROPEAN RADIOLOGY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Chelsea A. S. Dunning, Jeffrey F. Marsh, Timothy Winfree, Kishore Rajendran, Shuai Leng, David L. Levin, Tucker F. Johnson, Joel G. Fletcher, Cynthia H. McCollough, Lifeng Yu
Summary: A phantom study comparing high-resolution photon-counting detector computed tomography (PCD-CT) and energy-integrating detector (EID) CT was conducted to evaluate nodule volume and airway wall thickness quantification using low-dose chest CT. The results showed that USK PCD-CT provided more accurate lung nodule volume and airway wall thickness quantification at lower radiation dose compared with MK PCD-CT and EID-CT.
INVESTIGATIVE RADIOLOGY
(2023)
Article
Clinical Neurology
Masaaki Machino, Noriaki Kawakami, Tetsuya Ohara, Toshiki Saito, Ryoji Tauchi, Shiro Imagama
Summary: This study aimed to investigate the changes in rib cage deformity in AIS patients by comparing preoperative and postoperative 3D reconstruction images. The results showed significant correction of scoliosis and increase of thoracic kyphosis postoperatively.
Article
Radiology, Nuclear Medicine & Medical Imaging
Lauren M. Severance, Jed D. Pack, Francisco J. Contijoch, Elliot R. McVeigh
Summary: This study assessed the detectability of small calcium hydroxyapatite (CaHA) granules using clinical CT scanning. The results showed that a simulated spherical calcium granule with a clinically relevant CaHA density could be detected with a minimum diameter of 0.76 mm. Detectability was significantly improved with reduced slice thickness, but not affected by a sharper reconstruction kernel.
Article
Orthopedics
C. G. Anderson, Z. R. Brilliant, S. J. Jang, R. Sokrab, D. J. Mayman, J. M. Vigdorchik, P. K. Sculco, S. A. Jerabek
Summary: This study aimed to compare the accuracy of CT and 3D EOS in measuring femoral stem version in postoperative THA patients. The results showed no significant difference between the two imaging methods and high correlation, indicating that 3D EOS is a reliable option for measuring postoperative femoral version.
BONE & JOINT JOURNAL
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Simon Lennartz, Anushri Parakh, Jinjin Cao, David Zopfs, Nils Grosse Hokamp, Avinash Kambadakone
Summary: The study investigates the inter-scan and inter-scanner variation of iodine concentration and attenuation in different DECT scanners, finding that the iodine concentration shows higher variation compared to attenuation values. This variation depends on the scanner pairs and organs assessed, highlighting the importance of acknowledging these differences in clinical and scientific DECT applications.
EUROPEAN RADIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Fasco van Ommen, Frans Kauw, Edwin Bennink, Jeremy J. Heit, Dylan N. Wolman, Jan Willem Dankbaar, Hugo W. A. M. de Jong, Max Wintermark
Summary: Evaluation of virtual monochromatic images (VMI) from dual-energy dual source noncontrast head CT with different reconstruction kernels showed that optimal image quality can improve brain parenchymal image quality compared to conventional CT, depending on the reconstruction kernel used and the specific indication for performing noncontrast CT.
ACADEMIC RADIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Vitali Koch, Moritz H. Albrecht, Leon D. Gruenewald, Ibrahim Yel, Katrin Eichler, Tatjana Gruber-Rouh, Renate M. Hammerstingl, Iris Burck, Julian L. Wichmann, Leona S. Alizadeh, Thomas J. Vogl, Lukas Lenga, Christoph Mader, Simon S. Martin, Silvio Mazziotti, Tommaso D'Angelo, Christian Booz
Summary: Color-coded contrast-enhanced dual-energy CT virtual noncalcium (VNCa) reconstructions show similar diagnostic accuracy as unenhanced VNCa imaging for lumbar disk herniation assessment, with high overall sensitivity, specificity, and accuracy. Intermethod agreement and ratings for diagnostic confidence, image quality, and noise were also comparable between the two imaging modalities.
EUROPEAN RADIOLOGY
(2022)
Article
Engineering, Biomedical
Elena Fogazzi, Diego Trevisan, Paolo Farace, Roberto Righetto, Simon Rit, Monica Scaringella, Mara Bruzzi, Francesco Tommasino, Carlo Civinini
Summary: The objective of this study was to evaluate the imaging performances of the pCT system developed in INFN-funded research projects. The spatial resolution, noise power spectrum, and RSP accuracy were investigated. The results showed that the pCT system provides accurate RSP estimation and has the potential to be a clinical tool for xCT calibration in proton treatment planning.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Article
Clinical Neurology
Anne-Laure Simon, Audrey Angelliaume, Adele Happiette, Maxime Huneidi, Florence Julien-Marsollier, Brice Ilharreborde
Summary: This study analyzed the 3D radiological outcomes and pulmonary function of severe EOS patients treated with HGT and surgery, showing significant postoperative gains in spinal and thoracic lengths, as well as thoracic volume.
EUROPEAN SPINE JOURNAL
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Sjoerd A. M. Tunissen, Luuk J. Oostveen, Nikita Moriakov, Jonas Teuwen, Koen Michielsen, Ewoud J. Smit, Ioannis Sechopoulos
Summary: The purpose of this study is to develop a scanner-specific CT simulation using physics-based simulations for position-dependent effects and shift-invariant image corruption methods for detector effects. By introducing simplifications in the simulation process, it is possible to achieve faster and less memory-demanding simulations without sacrificing realism.
Article
Gastroenterology & Hepatology
Colin G. DeLong, Nabeel E. Sarwani, Rickhesvar P. Mahraj, Eric M. Pauli
Summary: Endoscopic interventions have limitations in patients with challenging anatomy, but the combined use of endoscopy and CT fluoroscopy can provide the necessary precision. Additionally, the simultaneous use of endoscopy and CT fluoroscopy helps in performing difficult interventions. Enhanced patient care is possible through a multidisciplinary approach between interventional radiologists and surgeons.
JOURNAL OF GASTROINTESTINAL SURGERY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Lukas Birklein, Stefan Niebler, Elmar Schoemer, Robert Brylka, Ulrich Schwanecke, Ralf Schulze
Summary: We propose a motion estimation and motion correction approach for oral and maxillofacial cone beam CT scans based solely on 2D projection images. This algorithm improves the visualization quality of motion impaired scans, eliminating the need for re-scans and reducing radiation dosage for patients.
Article
Radiology, Nuclear Medicine & Medical Imaging
Ilaria Vittoria de Martini, Adrian Raoul Kobe, Christian Roeren, Robert Manka, Andre Euler, Dagmar Keller, Frank Ruschitzka, Hatem Alkadhi, Matthias Eberhard
Summary: This study evaluated the feasibility and accuracy of using CT pulmonary angiography (CTPA) for diagnosing acute heart failure (HF) in emergency department patients. The results showed that both HUratio and HUdiff had a high sensitivity for diagnosing HF, indicating their potential as viable diagnostic markers.
EUROPEAN RADIOLOGY
(2022)