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Journal of Thoracic Imaging

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https://www.readbyqxmd.com/read/28489667/increasing-levels-of-positive-end-expiratory-pressure-improve-the-left-ventricular-strain
#1
Manuel Ruiz-Bailén, Jesús Cobo-Molinos, Ana M Castillo-Rivera, María C Iniesta-Carricondo, María D Pola Gallego de Guzmán, Antonio Cárdenas-Cruz
PURPOSE: The goal of this study was to evaluate possible changes in the left myocardial performance of patients with cardiogenic shock (CS) during ascending levels of positive end-expiratory pressure (PEEP) using speckle-tracking echocardiography. MATERIALS AND METHODS: This was an interventional clinical study performed on CS patients under mechanical ventilation. These patients underwent echocardiography after 15 to 30 minutes of progressive increases in PEEP (ZEEP, PEEP 5, PEEP 10, PEEP 15 cm H2O)...
May 9, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28471811/cardiac-magnetic-resonance-t1-mapping-of-the-myocardium-technical-background-and-clinical-relevance
#2
Giuseppe Muscogiuri, Pal Suranyi, U Joseph Schoepf, Carlo N De Cecco, Aurelio Secinaro, Julian L Wichmann, Stephen R Fuller, Virginia W Lesslie, Akos Varga-Szemes
Myocardial T1-mapping has become feasible over the past decade as emerging technological magnetic resonance imaging advances enable increasingly rapid and reliable acquisition techniques. A variety of T1-mapping sequences are in development, with most allowing for the acquisition of a single-slice T1-map in a single breath-hold. The development of these protocols has spurred investigation into a wide range of potential clinical uses, including the characterization of cardiomyopathies. Although native T1-mapping provides superior tissue characterization, postcontrast T1-mapping is still indispensable for extracellular volume quantification...
May 2, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28471810/biventricular-heart-remodeling-after-percutaneous-or-surgical-pulmonary-valve-implantation-evaluation-by-cardiac-magnetic-resonance
#3
Francesco Secchi, Elda C Resta, Paola M Cannaò, Francesca Pluchinotta, Luciane Piazza, Gianfranco Butera, Mario Carminati, Francesco Sardanelli
PURPOSE: The aim of this study was to evaluate the impact of percutaneous pulmonary valve implantation (PPVI) and surgical pulmonary valve replacement (SPVR) on biventricular and pulmonary valve function using cardiac magnetic resonance. MATERIALS AND METHODS: Thirty-five patients aged 20±8 years (mean±SD) underwent PPVI, whereas 16 patients aged 30±11 years underwent SPVR. Cardiac magnetic resonance examinations were performed before and after the procedures with an average follow-up interval of 10 months...
May 2, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28394783/cardiac-computed-tomography-for-planning-revascularization-procedures
#4
Maksymilian P Opolski
Coronary computed tomography angiography (coronary CTA) is being increasingly used to detect and rule out coronary artery stenoses. Beyond stenosis detection, the abundance of anatomic, morphologic, and physiological information incorporated from a single one-stop-shop CT study has generated considerable interest in the context of preprocedural planning for coronary revascularization. Specifically, preprocedural CTA data sets can assist interventional cardiologists with selective catheter placement, appropriate guidewire choice, accurate stent size selection, and, most importantly, development of a stepwise revascularization strategy plan...
April 7, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28346329/cardiac-computed-tomography-radiomics-a-comprehensive-review-on-radiomic-techniques
#5
Márton Kolossváry, Miklós Kellermayer, Béla Merkely, Pál Maurovich-Horvat
Radiologic images are vast three-dimensional data sets in which each voxel of the underlying volume represents distinct physical measurements of a tissue-dependent characteristic. Advances in technology allow radiologists to image pathologies with unforeseen detail, thereby further increasing the amount of information to be processed. Even though the imaging modalities have advanced greatly, our interpretation of the images has remained essentially unchanged for decades. We have arrived in the era of precision medicine where even slight differences in disease manifestation are seen as potential target points for new intervention strategies...
March 24, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28060191/palla-and-westermark-signs
#6
Daniel Seung-Hun Lee, Hoang-Anh Vo, Arie Franco, Jayanth Keshavamurthy, Eran Rotem
No abstract text is available yet for this article.
March 22, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28419023/interrelations-of-epicardial-fat-volume-left-ventricular-t1-relaxation-times-and-myocardial-strain-in-hypertensive-patients-a-cardiac-magnetic-resonance-study
#7
Rami Homsi, Daniel Kuetting, Alois Sprinkart, Nina Steinfeld, Michael Meier-Schroers, Julian Luetkens, Jennifer Nadal, Darius Dabir, Stefan Fischer, Juergen Gieseke, Hans Schild, Daniel Thomas
PURPOSE: This cardiac magnetic resonance study was performed to assess myocardial fibrosis by evaluating T1-relaxation time (T1), to measure left ventricular (LV) strain, and to determine epicardial fat volume (EFV) in hypertensive patients with no history of cardiovascular (CV) events and to relate the results to the presence of coronary atherosclerotic artery disease (CAD) in these patients. MATERIALS AND METHODS: A total of 123 subjects were examined at 1.5 T...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28419022/computed-tomography-angiographic-assessment-of-acute-chest-pain
#8
Matthew M Miller, Carole A Ridge, Diana E Litmanovich
Acute chest pain is a leading cause of Emergency Department visits. Computed tomography angiography plays a vital diagnostic role in such cases, but there are several common challenges associated with the imaging of acute chest pain, which, if unrecognized, can lead to an inconclusive or incorrect diagnosis. These imaging challenges fall broadly into 3 categories: (1) image acquisition, (2) image interpretation (including physiological and pathologic mimics), and (3) result communication. The aims of this review are to describe and illustrate the most common challenges in the imaging of acute chest pain and to provide solutions that will facilitate accurate diagnosis of the causes of acute chest pain in the emergency setting...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28346331/reverse-attenuation-gradient-sign
#9
Harold Goerne, Sachin S Saboo, Prabhakar Rajiah
No abstract text is available yet for this article.
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28346330/differentiation-of-impaired-from-preserved-hemodynamics-in-patients-with-fontan-circulation-using-real-time-phase-velocity-cardiovascular-magnetic-resonance
#10
Hermann Körperich, Katja Müller, Peter Barth, Jürgen Gieseke, Nikolaus Haas, Ingram Schulze-Neick, Wolfgang Burchert, Deniz Kececioglu, Kai T Laser
PURPOSE: Progressive impairment of hemodynamics in patients with Fontan circulation is common, multifactorial, and associated with decreased quality of life and increased morbidity. We sought to assess hemodynamic differences between patients with preserved (preserved Fontans) and those with impaired circulation (impaired Fontans) after pulmonary vasodilation using oxygen and under forced breathing conditions. MATERIALS AND METHODS: Real-time phase-contrast cardiovascular magnetic resonance was performed using non-ECG triggered echo-planar imaging (temporal resolution=24 to 28 ms) in the ascending aorta (AAo) and superior vena cava (SVC)/inferior vena cava (IVC) on room air, after 100% oxygen inhalation (4 L/min; 10 min) and on forced breathing in 29 Fontan patients (17...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28338536/dual-energy-computed-tomography-for-the-evaluation-of-enhancement-of-pulmonary-nodules%C3%A2-3-cm-in-size
#11
Michael J Reiter, Weston T Winkler, Kenton E Kagy, Ryan B Schwope, Christopher J Lisanti
PURPOSE: The aim of the study was to compare the accuracies of 4 different methods of assessing pulmonary nodule enhancement to distinguish benign from malignant solid pulmonary nodules using nondynamic contrast-enhanced dual-energy computed tomography. MATERIALS AND METHODS: Seventy-two patients (mean age, 62 y) underwent dual-energy chest computed tomography 3 minutes after intravenous contrast administration. Each of 118 pulmonary nodules (9±5.9 mm) were evaluated for enhancement by 4 methods: visual assessment, 3-dimensional automated postprocessing measurement tool, manually drawn region of interest with calculated iodine-related attenuation, and measurement of iodine concentration...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28338535/lung-cancers-associated-with-cystic-airspaces-natural-history-pathologic-correlation-and-mutational-analysis
#12
Florian J Fintelmann, Jesaja K Brinkmann, William R Jeck, Fabian M Troschel, Subba R Digumarthy, Mari Mino-Kenudson, Jo-Anne O Shepard
PURPOSE: The aim of the study was to investigate the natural history of non-small cell lung cancers (NSCLCs) associated with cystic airspaces, including histopathology and molecular analysis. MATERIALS AND METHODS: A total of 34,801 computed tomographic (CT) scans of 2954 patients diagnosed with NSCLC between 2010 and 2015 were evaluated for association with a cystic airspace. Characteristics on serial CT, 18F-fludeoxyglucose positron emission tomography, and pathologic analysis were recorded...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28266961/thoracic-manifestations-of-klippel-trenaunay-syndrome
#13
Mark M Hammer, Wallace T Miller
Klippel-Trenaunay syndrome (KTS) is a congenital disorder characterized by venous malformations and a predisposition to pulmonary embolism. We reviewed the imaging findings of 7 adult patients with KTS who underwent thoracic CT. While the superficial manifestations of KTS predominantly affect the extremities, patients frequently develop abnormalities of the pulmonary arterial system, particularly chronic thromboembolic pulmonary hypertension. Additionally, some patients are seen to develop pulmonary arteriolar aneurysms; the physiologic significance of this finding is unknown at this time...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28198752/monoenergetic-dual-energy-computed-tomographic-imaging-cardiothoracic-applications
#14
Lukas Lenga, Moritz H Albrecht, Ahmed E Othman, Simon S Martin, Doris Leithner, Tommaso D'Angelo, Christophe Arendt, Jan-Erik Scholtz, Carlo N De Cecco, U Joseph Schoepf, Thomas J Vogl, Julian L Wichmann
Monoenergetic imaging is an increasingly used reconstruction technique in postprocessing of dual-energy computed tomography (DECT). The main advantage of this technique is the ability to substantially increase image contrast of structures with uptake of iodinated contrast material. Although monoenergetic imaging was mainly used in oncological DECT applications, recent research has further demonstrated its role in vascular imaging. Using this dedicated postprocessing algorithm, image contrast of vascular structures in the thorax can be increased, a drastic reduction of contrast material is feasible, and even beam-hardening artifacts can be reduced...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28002072/the-100-top-cited-articles-in-pulmonary-imaging-a-bibliometric-analysis
#15
Su Jin Hong, Kyoung Ja Lim, Hye Jeon Hwang, Sora Baek, Young Lan Seo, Eun Joo Yun, Chul Soon Choi, Dae Young Yoon
PURPOSE: The purpose of this study was to identify and characterize the 100 top-cited articles in pulmonary imaging. MATERIALS AND METHODS: From the database of Journal Citation Reports, 274 journals whose scope included pulmonary imaging were selected. The Web of Science search tools were then used to identify the 100 top-cited articles in the subject of pulmonary imaging published in these journals. The parameters used to analyze the characteristics of the 100 top-cited articles were journal (including subject category and impact factor), publication year, number of citations and annual citations, department and institution of authors, country of origin, article type, imaging technique, and topic...
May 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28221263/use-of-model-based-iterative-reconstruction-to-improve-detection-of-congenital-cardiovascular-anomalies-in-infants-undergoing-free-breathing-computed-tomographic-angiography
#16
Seth Kligerman, Ferdia Bolster, Jason Mitchell, Travis Henry, Jean Jeudy, Charles S White
PURPOSE: The aim of the study was to assess the detection of congenital cardiovascular anomalies (congenital heart disease) in neonates and infants using model-based iterative reconstruction (MBIR) algorithm compared with hybrid iterative reconstruction (HIR) and filtered back projection (FBP) reconstructions on axial computed tomography (CT) performed at minimum scanner dose. MATERIALS AND METHODS: Over 1 year, all CT angiographies performed in infants below 3 months of age with congenital heart disease were assessed retrospectively...
March 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28221262/recent-advances-in-computed-tomographic-technology-cardiopulmonary-imaging-applications
#17
Azadeh Tabari, Roberto Lo Gullo, Venkatesh Murugan, Alexi Otrakji, Subba Digumarthy, Mannudeep Kalra
Cardiothoracic diseases result in substantial morbidity and mortality. Chest computed tomography (CT) has been an imaging modality of choice for assessing a host of chest diseases, and technologic advances have enabled the emergence of coronary CT angiography as a robust noninvasive test for cardiac imaging. Technologic developments in CT have also enabled the application of dual-energy CT scanning for assessing pulmonary vascular and neoplastic processes. Concerns over increasing radiation dose from CT scanning are being addressed with introduction of more dose-efficient wide-area detector arrays and iterative reconstruction techniques...
March 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28060192/imaging-of-the-lungs-in-organ-donors-and-its-clinical-relevance-a-retrospective-analysis
#18
Gracijela Bozovic, Catharina Adlercreutz, Peter Höglund, Isabella Björkman-Burtscher, Peter Reinstrup, Richard Ingemansson, Cornelia Schaefer-Prokop, Roger Siemund, Mats Geijer
PURPOSE: The aim of the study was to retrospectively evaluate the diagnostic imaging that potential lung donors undergo, the reader variability of image interpretation and its relevance for donation, and the potential information gained from imaging studies not primarily intended for lung evaluation but partially including them. MATERIALS AND METHODS: Bedside chest radiography and computed tomography (CT), completely or incompletely including the lungs, of 110 brain-dead potential organ donors in a single institution during 2007 to 2014 were reviewed from a donation perspective...
March 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/27643445/managing-incidental-lung-nodules-in-patients-with-a-history-of-oncologic-disease-a-survey-of-thoracic-radiologists
#19
Mariaelena Occhipinti, Benedikt H Heidinger, Christina Pfannenberg, Reginald F Munden, Ronald L Eisenberg, Alexander A Bankier
PURPOSE: The aim of this study was to analyze the impact that a clinical history of an oncologic disease may have on the management decisions for incidentally detected lung nodules on chest computed tomographic (CT) examinations. MATERIALS AND METHODS: An electronic survey was sent to all 796 members of the Society of Thoracic Radiology regarding criteria for the management of incidentally detected lung nodules in oncologic patients, as well as recommendations for nodule follow-up...
March 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28221241/hyperpolarized-helium-3-diffusion-weighted-magnetic-resonance-imaging-detects-abnormalities-of-lung-structure-in-children-with-bronchopulmonary-dysplasia
#20
Lucia Flors, John P Mugler, Alix Paget-Brown, Deborah K Froh, Eduard E de Lange, James T Patrie, Talissa A Altes
PURPOSE: The aim of the study was to determine whether hyperpolarized He diffusion-weighted magnetic resonance imaging detects abnormalities in the lungs in children with bronchopulmonary dysplasia (BPD) as compared with age-matched normal children. MATERIALS AND METHODS: All experiments were compliant with Health Insurance Portability and Accountability Act (HIPAA) and performed with Food and Drug Administration approval under an IND application. The protocol was approved by our Institutional Review Board, and written informed consent was obtained...
February 17, 2017: Journal of Thoracic Imaging
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