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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.  ...  Since the aorta and PA areas show low intensity contrast in the mediastinum, it is difficult to extract those areas by a procedure based on CT values.  ...  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

Paediatric multi-detector row chest CT: what you really need to know

Carolyn Young, Cheng Xie, Catherine M. Owens
2012 Insights into Imaging  
The emergence of multi-detector row CT (MDCT) has established and extended the role of CT especially in paediatric chest imaging.  ...  This has altered the way in which data is acquired and is perceived as the 'gold standard' in the detection of certain chest pathologies.  ...  parameters used; (3) radiation exposure modulation over sensitive organs, which reduces tube output when the x-ray tube is in the AP position over the breast and thyroid region without the need to employ  ... 
doi:10.1007/s13244-012-0152-5 pmid:22696085 pmcid:PMC3369117 fatcat:re3brh76hrbmjgv4q24fnxgblm

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  
CT angiography has expanded our understanding of human vascular disease (AAS and peripheral arterial disease), in which it has guided new strategies in disease management (aortic endograft deployment  ...  Through a marriage of spiral computed tomography (CT) and graphical volumetric image processing, CT angiography was born 20 years ago.  ...  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.  ...  tomographic aortography CXR = Chest x-ray EACVI = European Association of Cardiovascular Imaging EAU = Epiaortic ultrasound GCA = Giant-cell (temporal) arteritis ICM = Iodinated contrast media IMH = Intramural  ... 
doi:10.1016/j.echo.2014.11.015 pmid:25623219 fatcat:koxxqcczwrauddicj5fahra2fq

NASCI Abstracts

J.H.C. Reiber
2007 The International Journal of Cardiovascular Imaging  
optimal contrast enhancement of pulmo-nary arteries, coronary arteries, and thoracic aorta in one CT acquisition to evaluate the three most dangerous causes of acute chest pain (PE, coronary stenosis,  ...  Conclusion Optimal simultaneous enhancement of the pulmonary arteries, coronary arteries, and thoracic aorta is possible using the new CT protocol 06-A-111-NASCI Coronary and thoracic aorta CT-angiography  ...  It appears adequate coronary angiography and ventriculography can be performed without a significant decrease in image quality.  ... 
doi:10.1007/s10554-006-9194-4 fatcat:vlkwythevjdt5ewacz5ut5xgom

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.  ...  The mean attenuation was measured in the ascending aorta, middle descending aorta and distal descending aorta. The radiation dose and contrast medium were recorded.  ... 
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  
The mean attenuation was measured in the ascending aorta, middle descending aorta and distal descending aorta. The radiation dose and contrast medium were recorded.  ...  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.  ...  The image noise, high-contrast resolution and CT radiation dose were compared with and without IRIS.  ... 
doi:10.1007/s00330-010-1887-3 pmid:20680292 fatcat:c73xl4gmnjbp5hahuek6dg2pcu

A combined local and global motion estimation and compensation method for cardiac CT

Qiulin Tang, Beshan Chiang, Akinola Akinyemi, Alexander Zamyatin, Bibo Shi, Satoru Nakanishi, Bruce R. Whiting, Christoph Hoeschen
2014 Medical Imaging 2014: Physics of Medical Imaging  
In this paper, we present a method to extract the centerline of the aorta in PC-MR images by applying methods from the DT-MRI.  ...  [Results] From the results of the MTF and the NPS, we confirmed that the ANR reduces the noise in the x-ray fluoroscopic images, without degrading the image resolution of the object.  ...  2 cm) in tens of minutes yielding images containing millions of spectra. Spectra are then automatically classified as one of seven cell-types in prostate tissue in a matter of seconds.  ... 
doi:10.1117/12.2043492 fatcat:fyzpc5m6jbh7fjohqpdmtzkhte

ECR 2012 Book of Abstracts - A - Postergraduate Educational Programme

2012 Insights into Imaging  
Recent developments in CT technology (increased number of detector rows, shorter turnaround times and radiation dose modulation) and PET technology (more efficient scintillation crystals, 3D and 4D detection  ...  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.  ...  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

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

ESPR 2013

2013 Pediatric Radiology  
irradiated, may replace the many chest X-Rays controls.  ...  Children undergoing MR (with and without anesthesia), CT (with and without sedation), fluoroscopy exams, X-Ray, ultrasound and nuclear medicine scans were included.  ...  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.  ...  The CT protocol includes the use of intravenous contrast medium, while oral contrast medium will not be routine in many institutions.  ... 
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.  ...  The CT protocol includes the use of intravenous contrast medium, while oral contrast medium will not be routine in many institutions.  ... 
doi:10.1007/s00330-009-1374-x pmid:19288110 fatcat:blzt6eohybeqjngnpyzlw7un6a

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.  ...  The CT protocol includes the use of intravenous contrast medium, while oral contrast medium will not be routine in many institutions.  ... 
doi:10.1007/s00330-002-0001-x fatcat:swpi4r6hzrgozpfxwqgz55bmvi

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.  ...  The CT protocol includes the use of intravenous contrast medium, while oral contrast medium will not be routine in many institutions.  ... 
doi:10.1007/s10406-008-0001-2 fatcat:gzbh2ky3enhabmfr7tz42qqqwi
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