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Automated extraction of aorta and pulmonary artery in mediastinum from 3D chest x-ray CT images without contrast medium

Takayuki Kitasaka, Kensaku Mori, Jun-ichi Hasegawa, Jun-ichiro Toriwaki, Kazuhiro Katada, Milan Sonka, J. Michael Fitzpatrick
2002 Medical Imaging 2002: Image Processing  
This paper proposes a method for automated extraction of the aorta and pulmonary artery (PA) in the mediastinum of the chest from uncontrasted chest X-ray CT images.  ...  We applied the proposed method to seven cases of uncontrasted chest X-ray CT images and evaluated the results by calculating the coincidence index computed from the extracted regions and the regions manually  ...  CONCLUSIONS In this paper, we proposed an automated extraction method of the aorta and the PA in the mediastinum from uncontrasted chest X-ray CT images.  ... 
doi:10.1117/12.467116 dblp:conf/miip/KitasakaMHTK02 fatcat:dx3mflnobjhodjetz4zfovcvka

CT Angiography after 20 Years: A Transformation in Cardiovascular Disease Characterization Continues to Advance

Geoffrey D. Rubin, Jonathon Leipsic, U. Joseph Schoepf, Dominik Fleischmann, Sandy Napel
2014 Radiology  
Fueled by a series of technical innovations in CT and image processing, over the next 5-15 years, CT angiography toppled conventional angiography, the undisputed diagnostic reference standard for vascular  ...  , and endovascular repair of aortic aneurysms using stent-grafts.  ...  reconstructions from spiral CT acquisitions with 5 mm thickness to evaluate the central pulmonary arteries (14) and the thoracic aorta (15) .  ... 
doi:10.1148/radiol.14132232 pmid:24848958 pmcid:PMC4669887 fatcat:jjgl7hb7kbevlogzgwbds75xoy

Multimodality Imaging of Diseases of the Thoracic Aorta in Adults: From the American Society of Echocardiography and the European Association of Cardiovascular Imaging

Steven A. Goldstein, Arturo Evangelista, Suhny Abbara, Andrew Arai, Federico M. Asch, Luigi P. Badano, Michael A. Bolen, Heidi M. Connolly, Hug Cuéllar-Calàbria, Martin Czerny, Richard B. Devereux, Raimund A. Erbel (+17 others)
2015 Journal of the American Society of Echocardiography  
IMAGING TECHNIQUES A. Chest X-Ray (CXR) Most articles describing the use of imaging to evaluate patients with suspected AAS have focused on the role of CT, MRI, echocardiography, and aortography.  ...  to the level of the pulmonary artery] and IVb [from the level of the pulmonary artery to the diaphragm]); and segment V = abdominal aorta (subdivided into Va [upper abdominal aorta from the diaphragm to  ... 
doi:10.1016/j.echo.2014.11.015 pmid:25623219 fatcat:koxxqcczwrauddicj5fahra2fq

ECR 2011 Book of Abstracts - B - Scientific Sessions

2011 Insights into Imaging  
CT started 18 seconds after 140 HU threshold was reached in the abdominal aorta after intravenous contrast injection (370-400 mg I/mL, 4 mL/sec at 2 mL/kg followed by 50 mL of saline flush).  ...  Purpose: To compare the HCC nodule conspicuity during the arterial phase between contrast-enhanced 64-row multidetector CT with bolus tracking and MR imaging with bolus chase.  ...  Methods and Materials: Using a Compton spectrometer, primary MDCT x-ray spectra (120 kV p ) have been measured at different angular distance (0°-21°) from the central ray of the x-ray fan.  ... 
doi:10.1007/s13244-011-0077-4 pmid:23100071 pmcid:PMC3533624 fatcat:lytbu2vohbhhnorjqlpogl77iu

Athletic injuries of the extensor carpi ulnaris subsheath: MRI findings and utility of gadolinium-enhanced fat-saturated T1-weighted sequences with wrist pronation and supination

Jeremy Jeantroux, Fabio Becce, Henri Guerini, Bernard Montalvan, Dominique Le Viet, Jean-Luc Drapé
2010 European Radiology  
Results: X-ray attenuation of the different cartilage ROIs in the clinical CTa scans ranged from 144 -236 Hounsfield Units.  ...  X-ray attenuation values in ex-vivo contrast-enhanced μCT have been used as a measure of glycosaminoglycans (GAG) distribution in the cartilage, and hence cartilage quality.  ...  Purpose: To evaluate the assessibility of coronary arteries from standard chest CT angiographic examinations acquired with a high-pitch mode.  ... 
doi:10.1007/s00330-010-1887-3 pmid:20680292 fatcat:c73xl4gmnjbp5hahuek6dg2pcu

Full Issue PDF

2020 JACC Case Reports  
She was incidentally found to have a prominent aortic knob with borderline wide mediastinum on her chest x-ray, that prompted a computed tomography (CT) aortogram.  ...  FIGURE 2 2 Comparison of Admission and Post-Cardiopulmonary Resuscitation Chest X-Rays (A) Anteroposterior chest x-ray obtained on current admission showing prominent aortic knob.  ... 
doi:10.1016/s2666-0849(20)30758-0 fatcat:4btfdp2oyjchtg74wvfad7njna

Circulation: Cardiovascular Imaging Editors' Picks: Most Important Articles in Cardiovascular Imaging Science, Part II

2013 Circulation Cardiovascular Imaging  
ischemia in patients with coronary artery disease. 1 Summary: Adenosine stress myocardial CT perfusion imaging with 128-slice dual-source CT in high-pitch mode allows for accurate detection of myocardial  ...  This pilot study compared the diagnostic accuracy of myocardial perfusion imaging assessed by ultrafast (UF) singlephoton emission CT (SPECT) and standard (S) SPECT in a population of patients undergoing  ...  In addition, the LV lead position was derived from chest x-ray and was defined as concordant when the LV pacing lead coincided with the site of latest mechanical activation.  ... 
doi:10.1161/circimaging.113.001335 fatcat:3fzx5xkdozdd7oglhqe56crbfe

Oral presentations

2011 Pediatric Radiology  
Conclusion: TASL is a useful adjunct to chest X ray in the diagnosis of HMD.  ...  Conclusion: This study demonstrates that radiological abnormalities on pre-HAART chest X-ray are very common with 87.7% of patients having an abnormal chest X-ray.  ...  Materials and methods: 89 pediatric chest x-rays (age 5.63± 5.3 y, range from 0.08 to 17.9 y) were selected randomly in the x-ray unit and reseted to unprocessed state.  ... 
doi:10.1007/s00247-011-2024-4 fatcat:fe3o7eyxdfgu3gwtqtpyawpdce

ECR 2012 Book of Abstracts - A - Postergraduate Educational Programme

2012 Insights into Imaging  
To know how to choose the appropriate imaging modality. 2. To be familiar with the patterns of distribution and appearance in imaging. 3. To learn how to differentiate ischaemia from inflammation.  ...  Molecular imaging represents a group of integrated and complementary methods that evaluate the biological information resolved in time and space in vivo, at high resolution and by using with specific probes  ...  If there is strong clinical suspicion of pneumonia, a CT is often revealing when the chest X-ray was negative.  ... 
doi:10.1007/s13244-012-0153-4 pmid:22696127 pmcid:PMC3481066 fatcat:te6ctbtakzh5njsw43geghw3ta

ESPR 2013

2013 Pediatric Radiology  
irradiated, may replace the many chest X-Rays controls.  ...  In the following days, chest X-rays and US examinations showed progressive abscess formation and multiloculated pleural effusion.  ...  Lateral neck X-ray revealed a smooth, soft-tissue lesion in the epiglottic area.  ... 
doi:10.1007/s00247-013-2675-4 pmid:23613005 pmcid:PMC3679720 fatcat:nh3zxi5k3re6zgfy5zwqvnrele

A - Postgraduate Educational Programme

2010 Insights into Imaging  
X-ray imaging and pregnancy: Justification and optimisation of exposure P.  ...  To learn how to estimate conceptus radiation dose from diagnostic X-ray examinations. 3. To learn how to assess the radiogenic risks to the embryo/fetus from diagnostic X-ray examinations.  ...  At the level of the thoracic aorta also, a plain X-ray examination permits to evaluate abnormal findings in 88% of cases: widened mediastinum, abnormal aortic knob contour, tracheal or esophageal deviation  ... 
doi:10.1007/s13244-010-0010-2 pmid:23099630 pmcid:PMC3534349 fatcat:5fiszmj5unftrhizcn3encksgy

Postgraduate Educational Programme

2009 European Radiology  
X-ray imaging and pregnancy: Justification and optimisation of exposure P.  ...  To learn how to estimate conceptus radiation dose from diagnostic X-ray examinations. 3. To learn how to assess the radiogenic risks to the embryo/fetus from diagnostic X-ray examinations.  ...  At the level of the thoracic aorta also, a plain X-ray examination permits to evaluate abnormal findings in 88% of cases: widened mediastinum, abnormal aortic knob contour, tracheal or esophageal deviation  ... 
doi:10.1007/s00330-009-1374-x pmid:19288110 fatcat:blzt6eohybeqjngnpyzlw7un6a

Postgraduate Educational Programme

2008 European Radiology Supplements  
X-ray imaging and pregnancy: Justification and optimisation of exposure P.  ...  To learn how to estimate conceptus radiation dose from diagnostic X-ray examinations. 3. To learn how to assess the radiogenic risks to the embryo/fetus from diagnostic X-ray examinations.  ...  At the level of the thoracic aorta also, a plain X-ray examination permits to evaluate abnormal findings in 88% of cases: widened mediastinum, abnormal aortic knob contour, tracheal or esophageal deviation  ... 
doi:10.1007/s10406-008-0001-2 fatcat:gzbh2ky3enhabmfr7tz42qqqwi

A postgraduate educational programme

2002 European Radiology  
X-ray imaging and pregnancy: Justification and optimisation of exposure P.  ...  To learn how to estimate conceptus radiation dose from diagnostic X-ray examinations. 3. To learn how to assess the radiogenic risks to the embryo/fetus from diagnostic X-ray examinations.  ...  At the level of the thoracic aorta also, a plain X-ray examination permits to evaluate abnormal findings in 88% of cases: widened mediastinum, abnormal aortic knob contour, tracheal or esophageal deviation  ... 
doi:10.1007/s00330-002-0001-x fatcat:swpi4r6hzrgozpfxwqgz55bmvi

Management of Benign Head and Neck Tumors

Mahyar Mohammadifard, Godratallah Naseh
2014 Iranian Journal of Radiology  
This journal particularly welcomes manuscripts which deal with radiology and imaging from geographic regions wherein problems regarding economical, social, ethnic and cultural parameters affecting prevalence  ...  The Iranian Journal of Radiology has been launched in order to interchange information in the field of radiology and other related scientific spheres.  ...  We introduce the different appearances and key points of laryngeal cancers in imaging. x-ray CT-scanning MRI Dye injection especially in x-ray CT is necessary.  ... 
doi:10.5812/iranjradiol.21427 fatcat:sjwvn72hkrdhjokjbumorlk2hu
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