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CT screening

Scott J Lee, Jianmin Liu, Jianhua Yao, Andrew Kanarek, Ronald M Summers, Perry J Pickhardt
OBJECTIVE: To investigate a fully-automated CT-based adiposity tool, applying it to a longitudinal adult screening cohort. METHODS: A validated automated adipose tissue segmentation algorithm was applied to non-contrast abdominal CT scans in 8852 consecutive asymptomatic adults (mean age, 57.1 years; 3926M/4926F) undergoing colonography screening. The tool was also applied to follow-up CT scans in a subset of 1584 individuals undergoing longitudinal surveillance (mean interval, 5...
March 20, 2018: British Journal of Radiology
Penny Wang, Stacy E Smith, Rajesh Garg, Fengxin Lu, Alyssa Wohlfahrt, Anarosa Campos, Kathleen Vanni, Zhi Yu, Daniel H Solomon, Seoyoung C Kim
Objectives: Dual-energy CT (DECT) scan is a sensitive and specific tool used to visualise and quantify monosodium urate (MSU) crystal deposits in the joints. Few studies have examined MSU crystal deposits in patients with asymptomatic hyperuricemia (ie, hyperuricemia in the absence of gout) using DECT. Methods: We conducted a prospective, non-interventional cross-sectional study to detect MSU crystal deposits on DECT scans among patients with asymptomatic hyperuricemia...
2018: RMD Open
Simone Langness, Erin Ward, Jonathan Halbach, Radhames Lizardo, Katherine Davenport, Stephen Bickler, Karen Kling, Hari Thangarajah, Julia Grabowski, Timothy Fairbanks
PURPOSE: Serum D-dimer has been proposed as a biomarker to aid in the diagnosis of pediatric traumatic brain injury (TBI). We investigated the accuracy of D-dimer in predicting the absence of TBI and evaluated the degree by which D-dimer could limit unnecessary computed tomography scans of the head (CTH). METHODS: Retrospective review of patients with suspected TBI from 2011 to 2013 who underwent evaluation with CTH and quantitative D-dimer. D-dimer levels were compared among patients with clinically-important TBI (ciTBI), TBI, isolated skull fracture and no injury...
April 2018: Journal of Pediatric Surgery
Federico Davini, Sara Ricciardi, Carmelina Cristina Zirafa, Ilenia Cavaliere, Gaetano Romano, Franca Melfi
Background: The incidental detection of solitary pulmonary nodule (SPN) is currently increasing due to the widespread use of computed tomography (CT) during the follow up in oncological patients or in screening trials. A quick and definitive histological diagnosis of these nodes is mandatory as, in case of primitive lung cancer, an early detection could improve both surgical results and prognosis. The minimally invasive pulmonary resection (MIPR) is the gold standard procedure for diagnosis and treatment of small lung nodules, but it can be difficult to localize deep nonpalpable nodes that lie in the lung parenchyma...
2018: Journal of Visualized Surgery
Jennifer M Clifton
Compared with adults, sexually active adolescents are at higher risk of acquiring chlamydia and gonorrhea (CT/GC). Additionally, sex trafficking and sexual violence are serious public health problems. Before this project, no data on the sexual behaviors of adolescents within Utah's Juvenile Justice System had been gathered in a systematic manner that provided a population-based perspective. From July 1, 2015, through December 30, 2016, nurses and staff in 18 Utah Juvenile Justice facilities screened all youth admitted to their facilities...
March 15, 2018: Journal of Pediatric Health Care
Karla Arévalo Ruales, Rosa Negueroles Albuixech, José Loaiza Gongora, Elena Grau García, José Ivorra Cortés, José A Román Ivorra
OBJECTIVE: Polymyalgia rheumatica (PR) can be associated with large vessel vasculitis (LVV). We evaluate the diagnostic role of18 F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) and its impact on the treatment of LVV associated with PR. MATERIALS AND METHODS: Retrospective study of patients diagnosed with PR. Data was collected from health records. Blood analysis included acute-phase reactants (APR), C-reactive protein (CRP) and erythrocyte sedimentation rate...
March 14, 2018: Reumatología Clinica
R McCusker, R Gent, D W Goh
AIM: To review children with Omental Infarction (OI) and the role of Ultrasound Scan (US) in its diagnosis and management. METHODS: Cases of OI were identified retrospectively from 2004 to 2014 through screening of admission coding, pathology databases and radiology records. Demographic, clinical and pathological data were extracted from case records. MAIN RESULTS: 30 cases were identified (17 male, 13 female). Mean age was 10.7years (range 3...
February 15, 2018: Journal of Pediatric Surgery
Philippe De Vloo, Stefaan Nijs, Sandra Verelst, Johannes van Loon, Bart Depreitere
OBJECTIVE: According to level 2 evidence, earlier evacuation of acute subdural or epidural hematomas necessitating surgery is associated with better outcome. Hence, guidelines recommend performing these procedures "immediately". Literature on extent and causes of pre- and intra-hospital intervals in trauma patients requiring emergent craniotomies is almost completely lacking. Studies delineating and refining the interval before thrombolytic agent administration in ischemic stroke have dramatically reduced the "door-to-needle time"...
March 13, 2018: World Neurosurgery
Joseph P Herbert, Sidish S Venkataraman, Ali H Turkmani, Liang Zhu, Marcia L Kerr, Rajan P Patel, Irma T Ugalde, Stephen A Fletcher, David I Sandberg, Charles S Cox, Ryan S Kitagawa, Arthur L Day, Manish N Shah
OBJECTIVE The objective of this study was to assess the incidence, diagnosis, and treatment of pediatric blunt cerebrovascular injury (BCVI) at a busy Level 1 trauma center and to develop a tool for accurately predicting pediatric BCVI and the need for diagnostic testing. METHODS This is a retrospective cohort study of a prospectively collected database of pediatric patients who had sustained blunt trauma (patient age range 0-15 years) and were treated at a Level 1 trauma center between 2005 and 2015. Digital subtraction angiography, MR angiography, or CT angiography was used to confirm BCVI...
March 16, 2018: Journal of Neurosurgery. Pediatrics
D Valenzuela, F Moya, M Luco, J L Tapia
50 years ago, Northway described Broncopulmonary Dysplasia (BPD) in preterm infants exposed to mechanical ventilation. Since then, their survival has increased, nevertheless a "new BPD" has appeared and its incidence has not diminished. One of the characteristics of this pathology is the the abnormal vascular remodeling, which in its most severe expression is known as Pulmonary Hyper tension (PH); with an incidence of 17% in patients with BPD, which is proportional to the severity of the disease (33% in severe BPD), and as mortality factor (up to 48% 2-year mortality in PH-BPD)...
December 2017: Revista Chilena de Pediatría
Xiaopeng Yang, Jae Do Yang, Hee Chul Yu, Younggeun Choi, Kwangho Yang, Tae Beom Lee, Hong Pil Hwang, Sungwoo Ahn, Heecheon You
BACKGROUND AND OBJECTIVE: Manual tracing of the right and left liver lobes from computed tomography (CT) images for graft volumetry in preoperative surgery planning of living donor liver transplantation (LDLT) is common at most medical centers. This study aims to develop an automatic system with advanced image processing algorithms and user-friendly interfaces for liver graft volumetry and evaluate its accuracy and efficiency in comparison with a manual tracing method. METHODS: The proposed system provides a sequential procedure consisting of (1) liver segmentation, (2) blood vessel segmentation, and (3) virtual liver resection for liver graft volumetry...
May 2018: Computer Methods and Programs in Biomedicine
Mario Silva, Cornelia M Schaefer-Prokop, Colin Jacobs, Giovanni Capretti, Francesco Ciompi, Bram van Ginneken, Ugo Pastorino, Nicola Sverzellati
OBJECTIVES: The aim of this study was to compare computer-aided diagnosis (CAD) and visual reading for the detection of subsolid nodules (SSNs) in volumetrl measuremic low-dose computed tomography (LDCT) for lung cancer screening. MATERIALS AND METHODS: Prospective visual detection (VD) and manuaent of SSN were performed in the 2303 baseline volumetric LDCTs of the Multicenter Italian Lung Detection trial. Baseline and 2- and 4-year LDCTs underwent retrospective CAD analysis, subsequently reviewed by 2 experienced thoracic radiologists...
March 14, 2018: Investigative Radiology
Hong Truong, Leonard G Gomella, Mathew L Thakur, Edouard J Trabulsi
PURPOSE: Current approaches to prostate cancer screening and diagnosis are plagued with limitations in diagnostic accuracy. There is a compelling need for biomolecular imaging that will not only detect prostate cancer early but also distinguish prostate cancer from benign lesions accurately. In this topic paper, we review evidence that supports further investigation of VPAC1-targeted PET/CT imaging in the primary diagnosis of prostate cancer. METHODS: A non-systematic review of Medline/PubMed was performed...
March 14, 2018: World Journal of Urology
Juan A Muñoz-Largacha, Katrina A Steiling, Hasmeena Kathuria, Marjory Charlot, Carmel Fitzgerald, Kei Suzuki, Virginia R Litle
BACKGROUND: Safety net hospitals provide care mostly to low-income, uninsured, and vulnerable populations, in whom delays in cancer screening are established barriers. Socioeconomic barriers might pose important challenges to the success of a lung cancer screening program at a safety net hospital. We aimed to determine screening follow-up compliance, rates of diagnostic and treatment procedures, and the rate of cancer diagnosis in patients classified as category 4 by the Lung CT Screening Reporting and Data System (Lung-RADS 4)...
February 9, 2018: Journal of Thoracic and Cardiovascular Surgery
Juan García de la Concepción, Martín Ávalos, Pedro Cintas, José Luis Jiménez
Computational strategies have gained increasing impact in the de novo design of large molecular sets targeted to a desired application. Here, we show that DFT-assisted theoretical analyses of cycloadditions involving mesoionic dipoles and strained cycloalkynes unveil a series of unexplored mesomeric betaines as vastly superior candidates for orthogonal applications. Thus, isosydnones, thiosydnones, and a six-membered homolog in particular, 6-oxo-1,3-oxazinium-4-olate, do exhibit enhanced reactivity with respect to sydnones, the archetypal mesoionic ring employed so far in orthogonal chemistry...
March 13, 2018: Chemistry: a European Journal
Erkan Gokce, Murat Beyhan
Objective: The nuchal ligament (NL) extends from the external occipital protuberance and median nuchal line to the spinous process of the 7th cervical vertebrae. In this study, we evaluated the incidence, location level, and size of ossifications of the NL (ONL) in patients who underwent cervical computed tomography (CT) for various reasons. Materials and Methods: The present study included 481 patients (187 females and 294 males) who underwent cervical CT from February 2011 to November 2016 due to reasons such as trauma, cervical spondylosis, neck pain, and screening for metastasis...
February 2018: Eurasian Journal of Medicine
C L Shannon, C C Bristow, N A Hoff, A Wynn, M Nguyen, A Medina-Marino, J Cabeza, A W Rimoin, J D Klausner
BACKGROUND: Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and Trichomonas vaginalis (TV) infections during pregnancy are linked with adverse birth outcomes. However, few countries have prenatal CT, NG, or TV screening programs. In this study, we aimed to evaluate the acceptability and feasibility of CT, NG, and TV screening and treatment among pregnant women across six low-to-middle income countries. METHODS: A total 1,817 pregnant women were screened for CT, NG, and TV in Botswana, the Democratic Republic of Congo (DRC), Haiti, South Africa, and Vietnam...
March 9, 2018: Sexually Transmitted Diseases
Qinghua Zhou, Yaguang Fan, Ying Wang, Youlin Qiao, Guiqi Wang, Yunchao Huang, Xinyun Wang, Ning Wu, Guozheng Zhang, Xiangpeng Zheng, Hong Bu, Yin Li, Sen Wei, Liang'an Chen, Chengping Hu, Yuankai Shi, Yan Sun
BACKGROUND: Lung cancer is the leading cause of cancer-related death in China. The results from a randomized controlled trial using annual low-dose computed tomography (LDCT) in specific high-risk groups demonstrated a 20% reduction in lung cancer mortality. The aim of tihs study is to establish the China National lung cancer screening guidelines for clinical practice. METHODS: The China lung cancer early detection and treatment expert group (CLCEDTEG) established the China National Lung Cancer Screening Guideline with multidisciplinary representation including 4 thoracic surgeons, 4 thoracic radiologists, 2 medical oncologists, 2 pulmonologists, 2 pathologist, and 2 epidemiologist...
February 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
Joost M Costerus, Matthijs C Brouwer, Marieke E S Sprengers, Stefan D Roosendaal, Arie van der Ende, Diederik van de Beek
Background: It is unclear how often lumbar puncture (LP) is complicated by cerebral herniation in patients with bacterial meningitis and whether cranial CT can be used to identify patients at risk for herniation. Methods: We performed a nationwide prospective cohort study of patients with community-acquired bacterial meningitis from 2006 to 2014 and identified patients with clinical deterioration possibly caused by LP. For systematic evaluation of contraindications for LP on cranial CT, these patients were matched to patients in the cohort without deterioration...
March 7, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Giuseppe Maiolino, Michele Battistel, Giulio Barbiero, Valeria Bisogni, Gian Paolo Rossi
BACKGROUND: We herein report on a 20 years old woman with stage I hypertension, who was found to carry a renin-producing tumor (RPT). METHODS: Due to her young age, the patient underwent screening measurement of plasma renin and aldosterone, abdominal computed tomography (CT) angiography, and selective renal vein renin assessment to identify secondary hypertension. RESULTS: The patient was screened for secondary causes of hypertension and was diagnosed with secondary aldosteronism...
March 7, 2018: American Journal of Hypertension
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