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https://www.readbyqxmd.com/read/28336945/x-ray-dark-field-radiography-facilitates-the-diagnosis-of-pulmonary-fibrosis-in-a-mouse-model
#1
Katharina Hellbach, Andre Yaroshenko, Konstantin Willer, Thomas M Conlon, Margarita B Braunagel, Sigrid Auweter, Ali Ö Yildirim, Oliver Eickelberg, Franz Pfeiffer, Maximilian F Reiser, Felix G Meinel
The aim of this study was to evaluate whether diagnosing pulmonary fibrosis with projection radiography can be improved by using X-ray dark-field radiograms. Pulmonary X-ray transmission and dark-field images of C57Bl/6N mice, either treated with bleomycin to induce pulmonary fibrosis or PBS to serve as controls, were acquired with a prototype grating-based small-animal scanner. Two blinded readers, both experienced radiologists and familiar with dark-field imaging, had to assess dark-field and transmission images for the absence or presence of fibrosis...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28331023/pulmonary-kaposi-sarcoma-presenting-as-complete-lung-consolidation
#2
Ahmad Alwassia, Ziyad Alshathri, Rahul Khosla, Samuel V Spagnolo
The patient in our case presented with progressive dyspnoea and cough. Chest radiograph reveals complete opacification of the hemithorax. Complete lung consolidation was not seen on chest CT. The patient in this case had extensive pulmonary and endobronchial Kaposi sarcoma (KS) that led to complete consolidation of the right lung that was diagnosed via bronchoscopy. After diagnosis, he was restarted on antiretroviral therapy and single-agent chemotherapy for treatment of pulmonary KS.
March 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28329150/scoliosis-after-pectus-excavatum-correction-does-it-improve-or-worsen-%C3%A2
#3
Jae Ho Chung, Hyung Joo Park, Kwang Taik Kim
OBJECTIVES: Scoliosis is associated with pectus excavatum. However, the change in the degree of scoliosis after pectus excavatum correction has not been clarified. This study examined how the correction of pectus excavatum influences the status of pre-existing scoliosis. METHODS: A total of 779 pectus excavatum patients operated between 2007 and 2011 using the pectus bar were retrospectively analysed. Preoperative severity and postoperative change of scoliosis in accordance with the severity of pectus excavatum were evaluated...
March 7, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28324924/automatic-tissue-characterization-of-air-trapping-in-chest-radiographs-using-deep-neural-networks
#4
Awais Mansoor, Geovanny Perez, Gustavo Nino, Marius George Linguraru
Significant progress has been made in recent years for computer-aided diagnosis of abnormal pulmonary textures from computed tomography (CT) images. Similar initiatives in chest radiographs (CXR), the common modality for pulmonary diagnosis, are much less developed. CXR are fast, cost effective and low-radiation solution to diagnosis over CT. However, the subtlety of textures in CXR makes them hard to discern even by trained eye. We explore the performance of deep learning abnormal tissue characterization from CXR...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28323731/thymic-carcinoma-with-endobronchial-metastasis-a-case-report
#5
Makoto Nagamata, Yusuke Okuma, Yukio Hosomi, Tsunekazu Hishima
Thymic carcinoma is a rare cancer, accounting for only 1% to 4% of thymic epithelial tumors. Endobronchial metastasis is a rare presentation of these tumors. A 64-year-old man presented with a cough. Lung cancer was suspected because a chest radiograph showed a 7-cm mass in the left pulmonary hilum. Computed tomography showed a mass in the anterior mediastinum and an infiltrate in the upper lobe of the left lung. Bronchoscopy demonstrated bilateral polypoid tumors in the left B bronchus and the right B bronchus...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28321190/skeletal-dysplasias-growing-therapy-for-growing-bones
#6
REVIEW
Angie C Jelin, Elizabeth O'Hare, Karin Blakemore, Eric B Jelin, David Valle, Julie Hoover-Fong
Skeletal dysplasias represent a large and diverse group of rare conditions affecting collagen and bone. They can be clinically classified based on radiographic and physical features, and many can be further defined at a molecular level (Bonafe et al., 2015). Early diagnosis is critical to proper medical management including pharmacologic treatment when available. Patients with severe skeletal dysplasias often have small chests with respiratory insufficiency or airway obstruction and require immediate intubation after birth...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28304084/surgical-versus-non-surgical-management-for-pleural-empyema
#7
REVIEW
Mark D Redden, Tze Yang Chin, Mieke L van Driel
BACKGROUND: Empyema refers to pus in the pleural space, commonly due to adjacent pneumonia, chest wall injury, or a complication of thoracic surgery. A range of therapeutic options are available for its management, ranging from percutaneous aspiration and intercostal drainage to video-assisted thoracoscopic surgery (VATS) or thoracotomy drainage. Intrapleural fibrinolytics may also be administered following intercostal drain insertion to facilitate pleural drainage. There is currently a lack of consensus regarding optimal treatment...
March 17, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28303828/high-prevalence-of-cryptococcal-antigenaemia-amongst-asymptomatic-advanced-hiv-patients-in-pune-india
#8
Dileep Kadam, Ajay Chandanwale, Renu Bharadwaj, Neetal Nevrekar, Samir Joshi, Sandesh Patil, Nikhil Gupte, Shashi Sangle, Kavita Chopade, Vandana Kulkarni, Usha Balasubramanian, Nishi Suryavanshi, Divyashri Jain, Savita Kanade, Sujata Dharmashale, Anju Kagal, Amita Gupta, Vidya Mave
BACKGROUND: The World Health Organization recommends routine cryptococcal antigen (CrAg) screening in advanced AIDS patients initiating antiretroviral treatment (ART). India has yet to adopt this strategy as the burden of cryptococcal antigenaemia is unknown. METHODS: A prospective study was conducted in a large public sector ART centre and the inpatient wards of Sassoon Hospital, Pune, India. All consenting patients> 18 years of age with CD4 count <100 cells/mm3 were screened for CrAg by latex agglutination assay...
January 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28301584/diagnostic-accuracy-and-added-value-of-dual-energy-subtraction-radiography-compared-to-standard-conventional-radiography-using-computed-tomography-as-standard-of-reference
#9
Katharina Martini, Marco Baessler, Stephan Baumueller, Thomas Frauenfelder
PURPOSE: To retrospectively evaluate diagnostic performance of dual-energy subtraction radiography (DESR) for interpretation of chest radiographs compared to conventional radiography (CR) using computed tomography (CT) as standard of reference. MATERIAL AND METHODS: A total of 199 patients (75 female, median age 67) were included in this institutional review board (IRB)-approved clinical trial. All patients were scanned in posteroanterior and lateral direction with dual-shot DE-technique...
2017: PloS One
https://www.readbyqxmd.com/read/28301552/radiological-characteristics-of-pulmonary-cryptococcosis-in-hiv-infected-patients
#10
Zhiliang Hu, Jun Chen, Juan Wang, Qingfang Xiong, Yandan Zhong, Yongfeng Yang, Chuanjun Xu, Hongxia Wei
BACKGROUND: Current understanding of human immunodeficiency virus (HIV)-associated pulmonary cryptococcosis (PC) is largely based on studies performed about 2 decades ago which reported that the most common findings on chest radiograph were diffuse interstitial infiltrates. Few studies are available regarding the computed tomography (CT) findings. The aim of this study was to characterize chest CT features of HIV-associated PC. METHODS: HIV patients with cryptococccal infection and pulmonary abnormalities on Chest CT between September 2010 and May 2016 in the Second Affiliated Hospital of the Southeast University were retrospectively analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28299236/computer-aided-detection-fidelity-of-pulmonary-nodules-in-chest-radiograph
#11
Nikolaos Dellios, Ulf Teichgraeber, Robert Chelaru, Ansgar Malich, Ismini E Papageorgiou
AIM: The most ubiquitous chest diagnostic method is the chest radiograph. A common radiographic finding, quite often incidental, is the nodular pulmonary lesion. The detection of small lesions out of complex parenchymal structure is a daily clinical challenge. In this study, we investigate the efficacy of the computer-aided detection (CAD) software package SoftView™ 2.4A for bone suppression and OnGuard™ 5.2 (Riverain Technologies, Miamisburg, OH, USA) for automated detection of pulmonary nodules in chest radiographs...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28298628/the-size-of-spontaneous-pneumothorax-is-a-predictor-of-unsuccessful-catheter-drainage
#12
Tung-Ming Tsai, Mong-Wei Lin, Yao-Jen Li, Chin-Hao Chang, Hsien-Chi Liao, Chao-Yu Liu, Hsao-Hsun Hsu, Jin-Shing Chen
Small-bore thoracic catheter drainage is recommended for a first large or symptomatic episode of primary spontaneous pneumothorax (PSP). However, one-third of these patients require a second procedure because of treatment failure. We investigated the factors associated with unsuccessful pigtail catheter drainage in the management of PSP. In this retrospective study, using a prospectively collected database, we enrolled 253 consecutive patients with PSP who underwent pigtail catheter drainage as initial treatment, from December 2006 to June 2011...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28298577/trauma-imaging-a-literature-review
#13
Jason Heath Vela, Christopher Ira Wertz, Kimberly L Onstott, Joss R Wertz
PURPOSE: To inform radiologic technologists about which imaging modalities and examinations are best suited for evaluating specific anatomical structures in patients who have sustained a traumatic injury. METHODS: Two scholarly research databases were searched to identify articles focused on trauma imaging of the head, cervical spine, thorax, abdomen, and pelvis. Articles focused on trauma diagnosis were excluded. Thirty-two articles were selected for analysis. DISCUSSION: Physical examination and plain-film radiographs typically are used to assess nasal bone fracures...
January 2017: Radiologic Technology
https://www.readbyqxmd.com/read/28297291/evaluation-of-dose-area-product-of-common-radiographic-examinations-towards-establishing-a-preliminary-diagnostic-reference-levels-pdrls-in-southwestern-nigeria
#14
Nnamdi N Jibiri, Christopher J Olowookere
In Nigeria, a large number of radiographic examinations are conducted yearly for various diagnostic purposes. However, most examinations carried out do not have records of doses received by the patients, and the employed exposure parameters used are not documented; therefore, adequate radiation dose management is hindered. The aim of the present study was to estimate the dose-area product (DAP) of patients examined in Nigeria, and to propose regional reference dose levels for nine common examinations (chest PA, abdomen AP, pelvis AP, lumbar AP, skull AP, leg AP, knee AP, hand AP, and thigh AP) undertaken in Nigeria...
November 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28296326/evaluation-of-target-and-cardiac-position-during-visually-monitored-deep-inspiration-breath-hold-for-breast-radiotherapy
#15
Leigh Conroy, Rosanna Yeung, Elizabeth Watt, Sarah Quirk, Karen Long, Alana Hudson, Tien Phan, Wendy L Smith
A low-resource visually monitored deep inspiration breath-hold (VM-DIBH) technique was successfully implemented in our clinic to reduce cardiac dose in left-sided breast radiotherapy. In this study, we retrospectively characterized the chest wall and heart positioning accuracy of VM-DIBH using cine portal images from 42 patients. Central chest wall position from field edge and in-field maximum heart distance (MHD) were manually measured on cine images and compared to the planned positions based on the digitally reconstructed radiographs (DRRs)...
July 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28295528/serum-soluble-interleukin-2-receptor-level-is-more-sensitive-than-angiotensin-converting-enzyme-or-lysozyme-for-diagnosis-of-sarcoidosis-and-may-be-a-marker-of-multiple-organ-involvement
#16
Chuyen Thi Hong Nguyen, Naotomo Kambe, Izumi Kishimoto, Ikuko Ueda-Hayakawa, Hiroyuki Okamoto
Skin lesions in sarcoidosis are often the initial symptoms that enable the dermatologist to be the first to diagnose this granulomatosis. However, diagnosis is sometimes very problematic. In 2015, the diagnostic criteria for sarcoidosis were updated in Japan, with elevated serum soluble interleukin-2 receptor (sIL-2R) replacing negative tuberculin reaction. Therefore, we assessed the clinical utility of sIL-2R compared with two other common markers, angiotensin-converting enzyme (ACE) and lysozyme, in patients who visited the dermatology clinic...
March 11, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28293771/usefulness-of-2d-fusion-of-postmortem-ct-and-antemortem-chest-radiography-studies-for-human-identification
#17
Norihiro Shinkawa, Toshinori Hirai, Ryuichi Nishii, Nobuhiro Yukawa
PURPOSE: To determine the feasibility of human identification through the two-dimensional (2D) fusion of postmortem computed tomography (PMCT) and antemortem chest radiography. MATERIALS AND METHODS: The study population consisted of 15 subjects who had undergone chest radiography studies more than 12 months before death. Fused images in which a chest radiograph was fused with a PMCT image were obtained for those subjects using a workstation, and the minimum distance gaps between corresponding anatomical landmarks (located at soft tissue and bone sites) in the images obtained with the two modalities were calculated...
March 14, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28292873/variation-in-inpatient-croup-management-and-outcomes
#18
Amy Tyler, Lisa McLeod, Brenda Beaty, Elizabeth Juarez-Colunga, Meghan Birkholz, Daniel Hyman, Allison Kempe, James Todd, Amanda F Dempsey
BACKGROUND AND OBJECTIVES: Croup is a clinical diagnosis, and the available evidence suggests that, except in rare cases, ancillary testing, such as radiologic imaging, is not helpful. Given the paucity of inpatient-specific evidence for croup care, we hypothesized that there would be marked variability in the use of not routinely indicated resources (NRIRs). Our primary study objective was to describe the variation and predictors of variation in the use of NRIRs. METHODS: This was a retrospective cohort study that used the Pediatric Health Information System database of generally healthy inpatients with croup aged 6 months to 15 years who were admitted between January 1, 2012 and September 30, 2014...
March 14, 2017: Pediatrics
https://www.readbyqxmd.com/read/28289906/pediatric-chest-ct-at-chest-radiograph-doses-when-is-the-ultralow-dose-chest-ct-clinically-appropriate
#19
Javier E Villanueva-Meyer, David M Naeger, Jesse L Courtier, Michael D Hope, Jack W Lambert, John D MacKenzie, Andrew S Phelps
PURPOSE: Computed tomography (CT) use in emergency departments represents a significant contribution to pediatric patients' exposure to ionizing radiation. Here, we evaluate whether ultralow-dose chest CT can be diagnostically adequate for other diagnoses and whether model-based iterative reconstruction (MBIR) can improve diagnostic adequacy compared to adaptive statistical iterative reconstruction (ASIR) at ultralow doses. METHODS: Twenty children underwent chest CTs: 10 standard-dose reconstructed with ASIR and 10 ultralow-dose reconstructed with ASIR and MBIR...
March 14, 2017: Emergency Radiology
https://www.readbyqxmd.com/read/28285866/obstructed-infradiaphragmatic-total-anomalous-pulmonary-venous-return-in-a-13-day-old-infant-presenting-acutely-to-the-emergency-department-a-case-report
#20
Elizabeth A Siacunco, Garrett S Pacheco, Dale P Woolridge
BACKGROUND: Total anomalous pulmonary venous return (TAPVR) is an uncommon congenital heart defect. Obstructed forms are more severe, and typically present earlier in life, usually in the immediate newborn period, with symptoms of severe cyanosis and respiratory failure. CASE REPORT: A 13-day-old boy presented to the emergency department (ED) with respiratory extremis. He appeared cyanotic and limp, and was found to have significant hypoxia with oxygen saturation of 40%...
March 9, 2017: Journal of Emergency Medicine
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