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Journals Journal of Computer Assisted T...

Journal of Computer Assisted Tomography

https://read.qxmd.com/read/38518197/state-of-the-art-hybrid-imaging-of-neuroendocrine-neoplasms
#1
JOURNAL ARTICLE
Valentina Ambrosini, Emilia Fortunati, Stefano Fanti, Stephan Ursprung, Luigi Asmundo, Aileen O'Shea, Bashar Kako, Susanna Lee, Felipe S Furtado, Michael Blake, Reece J Goiffon, Zahra Najmi, Mina Hesami, Takaaki Murakami, Liran Domachevsky, Onofrio A Catalano
Neuroendocrine neoplasms (NENs) may be challenging to diagnose due to their small size and diverse anatomical locations. Hybrid imaging techniques, specifically positron emission tomography/computed tomography (PET/CT) and positron emission tomography/magnetic resonance imaging (PET/MRI), represent the current state-of-the-art for evaluating NENs. The preferred radiopharmaceuticals for NEN PET imaging are gallium-68 (68Ga) DOTA-peptides, which target somatostatin receptors (SSTR) overexpressed on NEN cells...
March 25, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38518357/the-impact-of-rapid-on-site-evaluation-on-diagnostic-performance-of-computed-tomography-guided-core-needle-biopsy-in-lung-cancer
#2
JOURNAL ARTICLE
Andrea Magnini, Chiara Lorini, Linda Calistri, Francesca Calcagni, Federico Giuntoli, Prassede Foxi, Cosimo Nardi, Stefano Colagrande
PURPOSE: Rapid on-site-evaluation (ROSE) is a technique aimed at improving the diagnostic performance of computed tomography (CT)-guided core needle biopsy (CNB) in lung cancer. The aim of this retrospective study was to investigate the impact of ROSE on the rate of nondiagnostic specimens and on accuracy computed on diagnostic specimens. MATERIALS AND METHODS: During a 3-year period, 417 CT-guided CNBs were performed at our center. The biopsies were retrospectively classified into 2 groups: 141 procedures were assisted by ROSE and 276 were not...
March 22, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38498926/improved-prediction-of-epidermal-growth-factor-receptor-status-by-combined-radiomics-of-primary-nonsmall-cell-lung-cancer-and-distant-metastasis
#3
JOURNAL ARTICLE
Yue Hu, Yikang Geng, Huan Wang, Huanhuan Chen, Zekun Wang, Langyuan Fu, Bo Huang, Wenyan Jiang
OBJECTIVES: This study aimed to investigate radiomics based on primary nonsmall-cell lung cancer (NSCLC) and distant metastases to predict epidermal growth factor receptor (EGFR) mutation status. METHODS: A total of 290 patients (mean age, 58.21 ± 9.28) diagnosed with brain (BM, n = 150) or spinal bone metastasis (SM, n = 140) from primary NSCLC were enrolled as a primary cohort. An external validation cohort, consisting of 69 patients (mean age, 59.87 ± 7...
March 18, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38446716/value-of-the-air-bronchogram-sign-and-other-computed-tomography-findings-in-the-early-diagnosis-of-lung-adenocarcinoma
#4
JOURNAL ARTICLE
Jia-Chang Liu, Jun Sheng, Song Xue, Ming Fang, Juan Huang, Zhong-Zhong Chen, Rui-Kai Wang, Mei Han
OBJECTIVES: The present study aims to explore the application value of the air bronchogram (AB) sign and other computed tomography (CT) signs in the early diagnosis of lung adenocarcinoma (LUAD). METHOD: The pathological information and CT images of 130 patients diagnosed with N0 and M0 solitary pulmonary nodules (diameter ≤3 cm) and treated with surgical resection in our hospital between June 2021 and June 2022 were analyzed. RESULTS: The patients were divided into the benign pulmonary nodule (BPN) group (14 cases), the AIS group (30 cases), the MIA group (10 cases), and the IAC group (76 cases)...
March 7, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38446711/mucinous-rectal-adenocarcinoma-challenges-in-magnetic-resonance-imaging-interpretation
#5
JOURNAL ARTICLE
Nir Stanietzky, Ajaykumar Morani, Venkateswar Surabhi, Corey Jensen, Natally Horvat, Raghu Vikram
Mucinous rectal cancer (MRC) is defined by the World Health Organization as an adenocarcinoma with greater than 50% mucin content. Classic teaching suggests that it carries a poorer prognosis than conventional rectal adenocarcinoma. This poorer prognosis is thought to be related to mucin dissecting through tissue planes at a higher rate, thus increasing the stage of disease at presentation. Developments in immunotherapy have bridged much of this prognostic gap in recent years. Magnetic resonance imaging is the leading modality in assessing the locoregional spread of rectal cancer...
March 7, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38438942/policies-and-practices-regarding-preparative-fasting-for-contrast-enhanced-computed-tomography-a-nationwide-survey
#6
JOURNAL ARTICLE
Jianjie Li, Li Cai, Li Zhao, Junling Liu, Fang Lan, Yuan Li, Heng Liu, Xue Li
OBJECTIVES: To evaluate current policies and practices regarding preparative fasting before contrast-enhanced computed tomography (CECT) and the knowledge and attitudes of radiology head nurses. METHODS: Radiology head nurses in 499 Chinese hospitals participated in an online survey on preparative fasting for CECT, which mainly included current departmental policies and practices and their knowledge and attitudes. RESULTS: Response rate was 89...
March 4, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38438338/an-illustrated-review-of-the-recent-2019-world-health-organization-classification-of-neuroendocrine-neoplasms-a-radiologic-and-pathologic-correlation
#7
JOURNAL ARTICLE
Stephan Ursprung, Lisa Zhang, Luigi Asmundo, Mina Hesami, Zhara Najmi, Lina Garcia CaƱamaque, Anuradha S Shenoy-Bhangle, Theodore T Pierce, Amirkasra Mojtahed, Michael A Blake, Rory Cochran, Konstantin Nikolau, Mukesh G Harisinghani, Onofrio A Catalano
Recent advances in molecular pathology and an improved understanding of the etiology of neuroendocrine neoplasms (NENs) have given rise to an updated World Health Organization classification. Since gastroenteropancreatic NENs (GEP-NENs) are the most common forms of NENs and their incidence has been increasing constantly, they will be the focus of our attention. Here, we review the findings at the foundation of the new classification system, discuss how it impacts imaging research and radiological practice, and illustrate typical and atypical imaging and pathological findings...
February 27, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38438336/prognostic-value-of-a-combined-nomogram-model-integrating-3-dimensional-deep-learning-and-radiomics-for-head-and-neck-cancer
#8
JOURNAL ARTICLE
Shuyan Li, Jiayi Xie, Jinghua Liu, Yanjun Wu, Zhongxiao Wang, Zhendong Cao, Dong Wen, Xiaolei Zhang, Bingzhen Wang, Yifan Yang, Lijun Lu, Xianling Dong
OBJECTIVE: The preoperative prediction of the overall survival (OS) status of patients with head and neck cancer (HNC) is significant value for their individualized treatment and prognosis. This study aims to evaluate the impact of adding 3D deep learning features to radiomics models for predicting 5-year OS status. METHODS: Two hundred twenty cases from The Cancer Imaging Archive public dataset were included in this study; 2212 radiomics features and 304 deep features were extracted from each case...
February 27, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38438334/risk-of-malignancy-in-incidentally-detected-lung-nodules-in-patients-aged-younger-than-35-years
#9
JOURNAL ARTICLE
Suzanne C Byrne, Caroline Peers, Mary Louise Gargan, Ronilda Lacson, Ramin Khorasani, Mark M Hammer
BACKGROUND: The risk of malignancy in pulmonary nodules incidentally detected on computed tomography (CT) in patients who are aged younger than 35 years is unclear. OBJECTIVE: The aim of this study was to evaluate the incidence of lung cancer in incidental pulmonary nodules in patients who are 15-34 years old. METHODS: This retrospective study included patients aged 15-34 years who had an incidental pulmonary nodule on chest CT from 2010 to 2018 at our hospital...
February 27, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38438332/liver-imaging-in-gastroenteropancreatic-neuroendocrine-neoplasms
#10
JOURNAL ARTICLE
Sunil Jeph, Shiva Gupta, Sireesha Yedururi, Taher E Daoud, Nir Stanietzky, Ajaykumar C Morani
The incidence of neuroendocrine neoplasms (NENs) has gradually increased over the past few decades with the majority of patients presenting with metastases on initial presentation. The liver is the most common site of initial metastatic disease, and the presence of liver metastasis is an independent prognostic factor associated with a negative outcome. Because NENs are heterogenous neoplasms with variable differentiation, grading, and risk of grade transformation over time, accurate diagnosis and management of neuroendocrine liver lesions are both important and challenging...
February 27, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38438330/estimating-body-weight-from-measurements-from-different-single-slice-computed-tomography-levels-an-evaluation-of-total-cross-sectional-body-area-measurements-and-deep-learning
#11
JOURNAL ARTICLE
Shota Ichikawa, Hiroyuki Sugimori
OBJECTIVE: This study aimed to evaluate the correlation between the estimated body weight obtained from 2 easy-to-perform methods and the actual body weight at different computed tomography (CT) levels and determine the best reference site for estimating body weight. METHODS: A total of 862 patients from a public database of whole-body positron emission tomography/CT studies were retrospectively analyzed. Two methods for estimating body weight at 10 single-slice CT levels were evaluated: a linear regression model using total cross-sectional body area and a deep learning-based model...
February 27, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38346820/optimizing-high-resolution-mr-angiography-the-synergistic-effects-of-3d-wheel-sampling-and-deep-learning-based-reconstruction
#12
JOURNAL ARTICLE
Goh Sasaki, Hiroyuki Uetani, Takeshi Nakaura, Keiichi Nakahara, Kosuke Morita, Yasunori Nagayama, Masafumi Kidoh, Koya Iwashita, Naofumi Yoshida, Masamichi Hokamura, Yuichi Yamashita, Makoto Nakajima, Mitsuharu Ueda, Toshinori Hirai
OBJECTIVE: The aim of this study was to assess the utility of the combined use of 3D wheel sampling and deep learning-based reconstruction (DLR) for intracranial high-resolution (HR)-time-of-flight (TOF)-magnetic resonance angiography (MRA) at 3 T. METHODS: This prospective study enrolled 20 patients who underwent head MRI at 3 T, including TOF-MRA. We used 3D wheel sampling called "fast 3D" and DLR for HR-TOF-MRA (spatial resolution, 0.39 × 0.59 × 0.5 mm3) in addition to conventional MRA (spatial resolution, 0...
February 12, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38346811/liver-biliary-function-evaluation-on-a-1-5t-magnetic-resonance-imaging-scan-by-t1-reduction-rate-assessment-using-variable-flip-angle-sequences
#13
JOURNAL ARTICLE
Marco Di Stasio, Cesare Cordopatri, Cosimo Nardi, Simone Busoni, Linhsia Noferini, Stefano Colagrande, Linda Calistri
OBJECTIVE: Magnetic resonance (MR) relaxometry is an absolute and reproducible quantitative method, compared with signal intensity for the evaluation of liver biliary function. This is obtainable by the T1 reduction rate (T1RR), as it carries a smaller systematic error than the pre/post contrast agent T1 measurement. We aimed to develop and test an MR T1 relaxometry tool tailored for the evaluation of liver T1RR after gadolinium ethoxybenzyl-diethylenetriaminepentaacetic acid administration on 1...
February 12, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38346810/virtual-monoenergetic-images-facilitate-better-identification-of-the-arc-of-riolan-during-splenic-flexure-takedown
#14
JOURNAL ARTICLE
Qian Li, Pengfei Zhang, Ranxu Zhang, Jianfeng Zhang, Ruoxi Tian, Tianyi Gao, Yu Huang, Ping Zhang, Wei Wei, Rui Hong, Guiying Wang, Jian Zhao
OBJECTIVE: This study aimed to investigate whether virtual monoenergetic images (VMIs) can aid radiologists and surgeons in better identifying the arc of Riolan (AOR) and to determine the optimal kilo electron volt (keV) level. METHODS: Thirty-three patients were included. Conventional images (CIs) and VMI (40-100 keV) were reconstructed using arterial phase spectral-based images. The computed tomography (CT) attenuation and noise of the AOR, the CT attenuation of the erector spinal muscle, and the background noise on VMI and CI were measured, respectively...
February 12, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38346793/evaluation-of-the-usefulness-of-contrast-enhanced-computed-tomography-for-the-early-detection-of-anastomotic-leakage-after-esophagectomy
#15
JOURNAL ARTICLE
Kazuhiko Morikawa, Yuichiro Tanishima, Takao Igarashi, Yohei Ohki, Keita Takahashi, Takanori Kurogochi, Fumiaki Yano, Hiroya Ojiri
OBJECTIVE: Anastomotic leakage is one of the most severe complications after esophagectomy. However, a diagnostic gold standard for anastomotic leakage has not been established yet. This retrospective cohort study aimed to evaluate the potential use of routine postoperative contrast-enhanced computed tomography findings as an early predictor of anastomotic leakage in patients who underwent esophagectomy for esophageal cancer. METHODS: This study included 75 patients who underwent Mckeown esophagectomy, of whom 22 developed anastomotic leakage after surgery...
February 12, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38335944/relationship-analysis-between-pericoronary-fat-attenuation-index-and-parameters-of-single-plaque
#16
JOURNAL ARTICLE
Ji-Yan Nie, Wen-Xi Chen, Qing-De Wu
OBJECTIVE: The aim of the study is to investigate the relationship between plaque parameters and pericoronary fat attenuation index (FAI). METHODS: A retrospective collection was performed on 227 patients with coronary heart disease who underwent coronary computed tomography angiography examinations in our hospital from May 2021 to April 2023, with a total of 254 right coronary or left anterior descending coronary arteries exhibiting solitary plaques within the FAI measurement area...
February 8, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38335943/computed-tomography-volumetry-of-bone-cement-retrospective-blinded-validation-of-commercially-available-semi-automated-edge-detection-software
#17
JOURNAL ARTICLE
Alan A Sag, Ernest Barral, Russell E Thompson, C Rory Goodwin, James Ronald
OBJECTIVE: Cement volumes are increasingly linked to orthopedic oncology and neurosurgical outcomes (construct durability, adjacent fracture), but manual cement volumetry remains time prohibitive. The authors aim to report performance of PACS-integrated volumetric software specifically for barium-enhanced polymethylmethacrylate cement. METHODS: Institutional review board-approved single-institution retrospective review of patients from 2019-2022 undergoing kyphoplasty for pathological compression fractures with a quantitative cement infuser providing true cement volume...
February 5, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38271539/pretreatment-interstitial-lung-abnormalities-detected-on-abdominal-computed-tomography-scans-in-prostate-cancer-patients
#18
JOURNAL ARTICLE
Hyun Jin Kim, Won Gi Jeong, Jeong Yeop Lee, Hyo-Jae Lee, Byung Chan Lee, Hyo Soon Lim, Yun-Hyeon Kim
OBJECTIVE: Prostate cancer and interstitial lung abnormality (ILA) share similar risk factor, which is men and older age. The purpose of this study was to investigate the prevalence of pretreatment ILA among prostate cancer patients who underwent abdominal computed tomography (CT) within 1 year at their first visit to the urology department. In addition, we aimed to assess the association between pretreatment ILA and long-term survival in prostate cancer patients. METHODS: This study was conducted in patients who had a first visit for prostate cancer at urology department between 2005 and 2016 and underwent an abdominal CT within 1 year...
January 25, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38271535/spectrum-of-thoracic-imaging-findings-in-the-setting-of-substance-abuse
#19
JOURNAL ARTICLE
Lauren S Gann, Jeffrey R Kunin, Mohamed Ebada, Christopher M Walker
Substance abuse continues to be prevalent nationwide and can lead to a myriad of chest pathologies. Imaging findings are vast and can include nodules, masses, ground-glass opacities, airspace disease, and cysts. Radiologists with awareness of these manifestations can assist in early identification of disease in situations where information is unable to be obtained from the patient. This review focuses on thoracic imaging findings associated with various forms of substance abuse, which are organized by portal of entry into the thorax: inhalation, ingestion, and injection...
January 25, 2024: Journal of Computer Assisted Tomography
https://read.qxmd.com/read/38271534/medial-patellar-plica-thickness-as-a-morphologic-predictor-of-the-medial-patellar-plica-syndrome
#20
JOURNAL ARTICLE
Dong Kyu Kim, Kyu-Chong Lee, Do Won Yoon, Taeho Kim
OBJECTIVE: The aim of this study was to evaluate the association between medial patellar plica (MPP) syndrome and the morphological features of the MPP, including length, width, and thickness, on knee magnetic resonance imaging (MRI). MATERIALS AND METHODS: From 2018 to 2022, 167 patients diagnosed with isolated MPP syndrome based on both MRI and arthroscopic findings were included in the "study group" and 226 patients without knee pathology on both MRI and physical examination were included in the "control group...
January 22, 2024: Journal of Computer Assisted Tomography
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