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Journal of Thoracic Imaging

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https://www.readbyqxmd.com/read/29683868/differentiating-usual-interstitial-pneumonia-from-nonspecific-interstitial-pneumonia-using-high-resolution-computed-tomography-the-straight-edge-sign
#1
Xi Zhan, Tilman Koelsch, Steven M Montner, Allen Zhu, Rekha Vij, Jeffery J Swigris, Jonathan H Chung
PURPOSE: The purpose of this article was to determine whether a novel finding on coronal computed tomography (CT) can help differentiate usual interstitial pneumonia (UIP) from nonspecific interstitial pneumonia (NSIP) in order to obviate lung biopsy. MATERIALS AND METHODS: Two chest radiologists, blinded to clinical data, reviewed 3 preselected coronal images from CT scans, performed within 1 year of surgical lung biopsy (SLB), from 51 patients with biopsy-proven UIP and 15 with biopsy-proven NSIP...
April 21, 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29668563/kinematic-magnetic-resonance-imaging-of-the-thorax-using-2-dimensional-balanced-subsecond-steady-state-free-precession-sequence-during-forced-breathing-in-comparison-with-spirometry
#2
Daigo Tanimoto, Katsuyoshi Ito, Hiroki Higashi, Akira Yamamoto, Akihiko Kanki, Kazuya Yasokawa, Tsutomu Tamada
PURPOSE: The purpose of this article was to investigate the feasibility of kinematic magnetic resonance imaging (MRI) during forced breathing for the assessment of thoracic and diaphragmatic movement and to compare the results of MRI and spirometry to determine the MRI parameters that are predominantly associated with pulmonary function. MATERIALS AND METHODS: Forty-nine healthy volunteers who underwent kinematic MRI using 2-dimensional balanced subsecond steady-state free precession sequence during forced breathing were included...
May 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29601415/aortic-root-sign
#3
Samuel M Knecht, Jean Jeudy, Charles S White
No abstract text is available yet for this article.
May 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29489584/cardiac-positron-emission-tomography-magnetic-resonance-imaging-current-status-and-future-directions
#4
Jeffrey M C Lau, Demetrios A Raptis, Richard Laforest, Felix Nensa, Jie Zheng, Robert J Gropler, Pamela K Woodard
Simultaneous acquisition positron emission tomography-magnetic resonance imaging (PET-MRI) has the ability to combine anatomic information derived from cardiac MRI with quantitative capabilities of cardiac PET and MRI and the promise of molecular imaging by specific PET tracers. This combination of cardiac PET and MRI delivers a robust and comprehensive clinical examination. It has the potential to assess various cardiovascular conditions, including assessment of myocardial ischemia, infarction, and function, as well as specific characterization of inflammatory and infiltrative heart diseases such as cardiac sarcoid and amyloid...
May 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29489583/imaging-in-congenital-and-hereditary-abnormalities-of-the-interventricular-septum-clinical-anatomy-and-diagnostic-clues
#5
Andrew M Kim, Timothy A Hunter, Brian F McQuillan, Derek F Franco, Timothy P Griffith, Brett W Carter, John P Lichtenberger
Early identification of congenital heart diseases, specifically those affecting the structural integrity and function of the interventricular septum, in childhood is important toward decreasing the morbidity and mortality of those affected. We review the pertinent clinical and imaging manifestations for those with ventricular septal defects, ventricular septal aneurysms, tetralogy of Fallot, and hypertrophic (obstructive) cardiomyopathy, in addition to discussing first-line imaging studies, including echocardiography, and indications for advanced imaging...
May 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29470258/improving-quality-of-dynamic-airway-computed-tomography-using-an-expiratory-airflow-indicator-device
#6
Lewis D Hahn, Arthur W Sung, Majid Shafiq, Haiwei Henry Guo
PURPOSE: Dynamic computed tomography (CT) of the airways is increasingly used to evaluate patients with suspected expiratory central airway collapse, but current protocols are susceptible to inadequate exhalation caused by variable patient compliance with breathing instructions during the expiratory phase. We developed and tested a low-cost single-use expiratory airflow indicator device that was designed to improve study quality by providing a visual indicator to both patient and operator when adequate expiratory flow was attained...
May 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29461430/quantitative-imaging-and-imaging-biomarkers-the-search-for-generalizability-in-radiology
#7
Fabian Bamberg
No abstract text is available yet for this article.
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29257030/complications-of-intravenous-substance-use-disorders-suds-a-multimodality-pictorial-essay-for-cardiothoracic-radiologists
#8
Rydhwana Hossain, Renata R Almeida, Hristina Natcheva, Sandeep Hedgire, Brian Ghoshhajra, Jo-Anne Shepard, Florian J Fintelmann, Efren J Flores
With the growing substance use disorders epidemic in the United States, a wide range of complications may be seen in both the acute and chronic clinical setting. This article will use a multimodality approach to review complications of intravenous substance use that cardiothoracic radiologists are likely to encounter. Radiologists should be aware of these multisystem complications that can affect the cardiovascular, respiratory, and musculoskeletal systems in order to make an accurate and timely diagnosis, which can drastically alter the management of these patients...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29232281/cross-sectional-areas-of-the-thoracic-aorta-in-children-and-adolescents-with-repaired-tetralogy-of-fallot-obtained-by-cardiac-magnetic-resonance-angiography
#9
Daniel Gräfe, Matthias Gutberlet, Meinhard Mende, Ingo Dähnert, Christian Lücke, Martin Kostelka, Stefan Nitzsche, Janine Hoffmann, Matthias Grothoff
PURPOSE: Dilatation of the thoracic aorta is a well-known finding in corrected Tetralogy of Fallot. Complications are rare but can be life-threatening. Standard 1-dimensional (1D) measurements have several limitations. We sought to establish contrast-enhanced magnetic resonance angiography cross-sectional areas of the aorta that could serve as reference values and to identify parameters that are associated with aortic dilatation. MATERIALS AND METHODS: We enrolled 101 children and adolescents...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29219887/short-term-automated-quantification-of-radiologic-changes-in-the-characterization-of-idiopathic-pulmonary-fibrosis-versus-nonspecific-interstitial-pneumonia-and-prediction-of-long-term-survival
#10
Federica De Giacomi, Sushravya Raghunath, Ronald Karwoski, Brian J Bartholmai, Teng Moua
PURPOSE: Fibrotic interstitial lung diseases presenting with nonspecific and overlapping radiologic findings may be difficult to diagnose without surgical biopsy. We hypothesized that baseline quantifiable radiologic features and their short-term interval change may be predictive of underlying histologic diagnosis as well as long-term survival in idiopathic pulmonary fibrosis (IPF) presenting without honeycombing versus nonspecific interstitial pneumonia (NSIP). MATERIALS AND METHODS: Forty biopsy-confirmed IPF and 20 biopsy-confirmed NSIP patients with available high-resolution chest computed tomography 4 to 24 months apart were studied...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29135627/quantitative-computed-tomography-metrics-from-the-transplanted-lung-can-predict-forced-expiratory-volume-in-the-first-second-after-lung-transplantation
#11
Eduardo J Mortani Barbosa, Haochang Shou, Scott Simpsom, James Gee, Nicholas Tustison, James C Lee
PURPOSE: Bronchiolitis obliterans syndrome after lung transplantation (LTx) manifests as a sustained decline in forced expiratory volume in the first second (FEV1). Quantitative computed tomography (QCT) metrics may predict FEV1 better than semiquantitative scores (SQSs), and the transplanted lung may provide better information than the native lung in unilateral LTx. MATERIALS AND METHODS: Paired inspiratory-expiratory CT scans and pulmonary function testing of 178 LTx patients were analyzed retrospectively...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28914747/appropriate-use-criteria-for-cardiac-computed-tomography-does-computed-tomography-have-incremental-value-in-all-appropriate-use-criteria-categories
#12
Fernanda Erthal, Manuja Premaratne, Yeung Yam, Li Chen, Jasmine Lamba, Marissa Keenan, Tony Haddad, Kishu Pharasi, Saipriya Anand, Rob S Beanlands, Ian G Burwash, Girish Dwivedi, Terrence D Ruddy, Benjamin J W Chow
PURPOSE: Cardiac imaging expenditures have come under scrutiny, and a focus on appropriate use criteria (AUC) has arisen to ensure cost-effective resource utilization. Although AUC has been developed by clinical experts, it has not undergone rigorous quality assurance testing to ensure that inappropriate indications for testing yield little clinical benefit. The objective of the study was to evaluate the potential incremental prognostic value of coronary computed tomographic angiography (CCTA) in the different AUC categories...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28817458/noninvasive-derivation-of-fractional-flow-reserve-from-coronary-computed-tomographic-angiography-a-review
#13
Stewart M Benton, Christian Tesche, Carlo N De Cecco, Taylor M Duguay, U Joseph Schoepf, Richard R Bayer
Coronary computed tomographic angiography (CCTA) has evolved as a rapid and highly sensitive method for the exclusion of obstructive coronary artery disease. Unfortunately, as it pertains to moderate and severe lesions, the ability to discriminate between those that are hemodynamically significant and those that are nonobstructive is lacking. Consequently, this deficiency can result in a significant number of unnecessary referrals for invasive angiography that yields nonobstructive results. Fractional flow reserve (FFR), which assesses the hemodynamic significance of a specific lesion, when performed during invasive angiography, results in improved patient outcomes compared with visual stenosis assessment alone...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28622166/quantitative-analysis-of-iodine-image-of-dual-energy-computed-tomography-at-rest-comparison-with-99mtc-tetrofosmin-stress-rest-single-photon-emission-computed-tomography-myocardial-perfusion-imaging-as-the-reference-standard
#14
Takehiro Nakahara, Takuji Toyama, Masahiro Jinzaki, Ryotaro Seki, Yuichiro Saito, Tetsuya Higuchi, Minoru Yamada, Masashi Arai, Yoshito Tsushima, Sachio Kuribayashi, Masahiko Kurabayashi
PURPOSE: Dual-energy computed tomography (DECT) can be used for visual determination of iodine distribution in the myocardium (iodine image); however, the accuracy and reproducibility of the process remains debatable. Because of the low contrast-to-noise ratio of CT, we hypothesized that quantitative measurement may be more accurate for detecting myocardial ischemia. In this study, we evaluated our quantitative method by comparing it with visual analysis using Tc-tetrofosmin (TF) stress-rest single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) as the reference standard...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28622164/measuring-left-ventricular-size-in-non-electrocardiographic-gated-chest-computed-tomography-what-radiologists-should-know
#15
Felipe S Torres, Luciano Folador, Diego A Eifer, Murilo Foppa, Kate Hanneman
Non-electrocardiographic (ECG)-gated computed tomography (CT) of the chest is one of the most commonly performed imaging studies. Although the heart is included in every CT study, cardiac findings are commonly underreported in radiology reports. Left ventricular size is one of the most important prognostic markers in multiple cardiac diseases and can be measured on almost all non-ECG-gated multidetector chest CT studies. This review will discuss the available evidence on different measurements of left ventricular size obtained on non-ECG-gated CT of the chest...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28471811/cardiac-magnetic-resonance-t1-mapping-of-the-myocardium-technical-background-and-clinical-relevance
#16
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...
March 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29389809/diagnostic-accuracy-of-coronary-computed-tomography-before-aortic-valve-replacement-systematic-review-and-meta-analysis
#17
Kongkiat Chaikriangkrai, Hye Yeon Jhun, Ghanshyam Palamaner Subash Shantha, Aref Bin Abdulhak, Rudhir Tandon, Musab Alqasrawi, Anthony Klappa, Samir Pancholy, Abhishek Deshmukh, Jay Bhama, Gardar Sigurdsson
PURPOSE: In aortic stenosis patients referred for surgical and transcatheter aortic valve replacement (AVR), the evidence of diagnostic accuracy of coronary computed tomography angiography (CCTA) has been limited. The objective of this study was to investigate the diagnostic accuracy of CCTA for significant coronary artery disease (CAD) in patients referred for AVR using invasive coronary angiography (ICA) as the gold standard. MATERIALS AND METHODS: We searched databases for all diagnostic studies of CCTA in patients referred for AVR, which reported diagnostic testing characteristics on patient-based analysis required to pool summary sensitivity, specificity, positive-likelihood ratio, and negative-likelihood ratio...
January 31, 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29389808/cross-modality-accuracy-of-dual-step-prospectively-electrocardiography-triggered-dual-source-computed-tomorgaphy-compared-with-same-day-echocardiography-and-cardiac-magnetic-resonance-imaging-in-the-follow-up-of-heart-transplant-patients
#18
Riccardo Marano, Biagio Merlino, Luigi Natale, Giancarlo Savino, Vincenzo Vingiani, Giuseppe Rovere, Anna Rita Larici, Roberto Iezzi, Nicola Magarelli, Antonella Lombardo, Massimo Pasquale, Riccardo Manfredi
PURPOSE: An accurate evaluation of left ventricular volumes, mass, and ejection fraction (EF) and an early exclusion or detection of significant coronary artery disease or cardiac allograft vasculopathy are mandatory for clinical management and prognosis assessment of heart-transplanted patients (HTP). The purpose of this article was to evaluate the role of dual-step prospective electrocardiography-triggered Dual-Source CT (pECGdual-step-DSCT) in HTP for the assessment of left-ventricular function, in comparison with echocardiography (echo) and cardiac magnetic resonance (CMR) performed on the same day, and of the coronary arteries as well...
January 31, 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29346192/image-quality-overall-evaluability-and-effective-radiation-dose-of-coronary-computed-tomography-angiography-with-prospective-electrocardiographic-triggering-plus-intracycle-motion-correction-algorithm-in-patients-with-a-heart-rate-over-65-beats-per-minute
#19
Gianluca Pontone, Giuseppe Muscogiuri, Andrea Baggiano, Daniele Andreini, Andrea I Guaricci, Marco Guglielmo, Fabio Fazzari, Saima Mushtaq, Edoardo Conte, Andrea Annoni, Alberto Formenti, Elisabetta Mancini, Massimo Verdecchia, Laura Fusini, Lorenzo Bonfanti, Elisa Consiglio, Mark G Rabbat, Antonio L Bartorelli, Mauro Pepi
PURPOSE: Recently, a new intracycle motion correction algorithm (MCA) was introduced to reduce motion artifacts from heart rate (HR) in coronary computed tomography angiography (cCTA). The aim of the study was to evaluate the image quality, overall evaluability, and effective radiation dose (ED) of cCTA with prospective electrocardiographic (ECG) triggering plus MCA as compared with standard protocol with retrospective ECG triggering in patients with HR≥65 bpm. MATERIALS AND METHODS: One hundred consecutive patients (67±10 y) scheduled for cCTA with 65<HR<80 bpm were retrospectively analyzed...
January 16, 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29346191/the-four-corners-sign-a-specific-imaging-feature-in-differentiating-systemic-sclerosis-related-interstitial-lung-disease-from-idiopathic-pulmonary-fibrosis
#20
Lara Walkoff, Darin B White, Jonathan H Chung, Dennis Asante, Christian W Cox
PURPOSE: Differentiating between systemic sclerosis-related interstitial lung disease (SSc-ILD) and idiopathic pulmonary fibrosis (IPF) is important because of the differences in workup, prognosis, and treatment. However, there is much overlap in the appearance of these 2 entities on high-resolution computed tomography. We propose that inflammation and/or fibrosis focally or disproportionately involving the bilateral anterolateral upper lobes and posterosuperior lower lobes ["Four Corners" Sign (FCS)] is specific for SSc-ILD...
January 16, 2018: Journal of Thoracic Imaging
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