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  1. Book ; Conference proceedings: Cardiac MR and CT imaging

    Becker, Christoph R.

    (European radiology ; 15, Suppl. 2)

    2005  

    Event/congress European Workshop on MR and CT Imaging of the Heart (2004, Sevilla)
    Author's details [European Workshop on MR and CT Imaging of the Heart, Seville, Spain, October 2004]. Guest ed.: Christoph Becker
    Series title European radiology ; 15, Suppl. 2
    Collection
    Language English
    Size B61 S. : zahlr. Ill., graph. Darst.
    Publisher Springer
    Publishing place Berlin u.a.
    Publishing country Germany
    Document type Book ; Conference proceedings
    HBZ-ID HT014306923
    Database Catalogue ZB MED Medicine, Health

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    Zs A 3300 -15,Suppl.2- not available for loan Zeitschriften-Lesesaal

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  2. Book ; Online: Multi-slice and Dual-source CT in Cardiac Imaging

    Ohnesorge, Bernd M. / Becker, Christoph R. / Flohr, Thomas G. / Knez, Andreas / Reiser, Maximilian F.

    Principles — Protocols — Indications — Outlook

    2007  

    Author's details by Bernd M. Ohnesorge, Thomas G. Flohr, Christoph R. Becker, Andreas Knez, Maximilian F. Reiser
    Keywords Cardiology ; Radiology, Medical
    Language English
    Edition Second Edition
    Publisher Springer-Verlag Berlin Heidelberg
    Publishing place Berlin, Heidelberg
    Document type Book ; Online
    HBZ-ID TT050387597
    ISBN 978-3-540-25523-9 ; 978-3-540-49546-8 ; 3-540-25523-0 ; 3-540-49546-0
    DOI 10.1007/978-3-540-49546-8
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  3. Article: Cardiac CT: a one-stop-shop procedure?

    Becker, Christoph R

    European radiology

    2008  Volume 16 Suppl 7, Page(s) M65–70

    Abstract: Multidetector row CT of the heart and coronary arteries is now a robust clinical method. It may be used in a number of different clinical scenarios, such as in the presence of an equivocal stress test or ambiguous clinical symptoms. Cardiac CT is also ... ...

    Abstract Multidetector row CT of the heart and coronary arteries is now a robust clinical method. It may be used in a number of different clinical scenarios, such as in the presence of an equivocal stress test or ambiguous clinical symptoms. Cardiac CT is also increasingly being developed as a diagnostic option for acute care such as in acute coronary syndrome. Here CT may serve as a tool to triage patients to appropriate therapy or to discharge them immediately after the investigation. The newest dual source CT also allows the assessment of cardiac function, helping to specify the diagnosis. Valve assessment by CT is still under investigation. However multidetector CT is of limited value in myocardial perfusion or for late my-ocardial enhancement scanning. Appropriate selection of patients for cardiac multidetector CT is mandatory so that the procedure is carried out only in those in whom it can provide clinically valuable information.
    MeSH term(s) Contrast Media ; Coronary Angiography ; Electrocardiography ; Heart Diseases/diagnostic imaging ; Humans ; Radiographic Image Interpretation, Computer-Assisted ; Tomography, X-Ray Computed/methods ; User-Computer Interface
    Chemical Substances Contrast Media
    Language English
    Publishing date 2008-07-25
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 1085366-2
    ISSN 1432-1084 ; 0938-7994 ; 1613-3749
    ISSN (online) 1432-1084
    ISSN 0938-7994 ; 1613-3749
    DOI 10.1007/s10406-006-0198-x
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  4. Article: Estimation of cardiac event risk by MDCT.

    Becker, Christoph R

    European radiology

    2005  Volume 15 Suppl 2, Page(s) B17–22

    Abstract: Coronary calcifications are specific markers for coronary atherosclerosis. The amount of coronary calcium is related to the likelihood of vulnerable plaques. Vulnerable plaques may rupture and may result in sudden coronary thrombus formation, occlusion, ... ...

    Abstract Coronary calcifications are specific markers for coronary atherosclerosis. The amount of coronary calcium is related to the likelihood of vulnerable plaques. Vulnerable plaques may rupture and may result in sudden coronary thrombus formation, occlusion, ischemia and ventricular fibrillation and finally cardiac death. Therefore, it is reasonable to believe that the risk of cardiac events can be assessed by the quantification of the extent of coronary calcium. However, until now, the predictive value of coronary calcium and the advantage over conventional risk factors has not yet been proven by any prospective cohort study. In practice uncertainty exists in the group of patients with an intermediate risk for cardiac events. In this particular cohort it is likely that the assessment of coronary atherosclerosis may help in the decision to initiate or discard a specific therapy. For this purpose it has been suggested to replace the Framingham age score by a score corrected by the amount of coronary calcium. Follow-up investigations may be helpful in the short term to determine the efficiency of different therapeutical options. To determine a significant progression of the amount of coronary calcium, the absolute mass should be determined in a period of 1 year.
    MeSH term(s) Age Factors ; Calcinosis/diagnostic imaging ; Cohort Studies ; Contrast Media ; Coronary Artery Disease/diagnostic imaging ; Coronary Thrombosis/etiology ; Death, Sudden, Cardiac/etiology ; Follow-Up Studies ; Forecasting ; Humans ; Image Processing, Computer-Assisted/methods ; Myocardial Ischemia/etiology ; Patient Care Planning ; Radiographic Image Enhancement ; Risk Assessment ; Tomography, X-Ray Computed/methods ; Ventricular Fibrillation/etiology
    Chemical Substances Contrast Media
    Language English
    Publishing date 2005-03-31
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1085366-2
    ISSN 1432-1084 ; 0938-7994 ; 1613-3749
    ISSN (online) 1432-1084
    ISSN 0938-7994 ; 1613-3749
    DOI 10.1007/s10406-005-0091-z
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  5. Article: Coronary CT angiography in symptomatic patients.

    Becker, Christoph R

    European radiology

    2005  Volume 15 Suppl 2, Page(s) B33–41

    Abstract: The currently best available spatial and temporal resolution for retrospectively ECG gated coronary multi-detector-row CT angiography is 0.4 mm and 165 ms, respectively. These acquisition parameters are already rather close to cardiac catheter. Studies ... ...

    Abstract The currently best available spatial and temporal resolution for retrospectively ECG gated coronary multi-detector-row CT angiography is 0.4 mm and 165 ms, respectively. These acquisition parameters are already rather close to cardiac catheter. Studies so far compared non-invasive coronary CT and convention angiography for the detection of coronary artery stenoses. The most promising result reported by all authors was the high negative predictive value of the CTA. It now needs to be determined if CTA is a reliable tool to rule out coronary artery stenoses in a patient cohort with low likelihood of CAD, such as those with atypical chest pain or ambiguous stress test. CTA may furthermore establish as a rapid and widely available tool to detect vulnerable plaques or intracoronary thrombus in patients with acute coronary syndrome and unstable angina. In patients with chronic stable angina, tools that determine myocardial ischemia under stress such as SPECT and MRI are probably better suited to determine the relevance of coronary artery stenoses. In this particular cohort, by displaying the extent and morphology of coronary atherosclerosis, CTA may help to direct the therapy to either intervention or surgery.
    MeSH term(s) Angina Pectoris/diagnostic imaging ; Angina, Unstable/diagnostic imaging ; Cohort Studies ; Coronary Angiography/methods ; Coronary Artery Bypass ; Coronary Artery Disease/diagnostic imaging ; Coronary Disease/diagnostic imaging ; Coronary Disease/surgery ; Coronary Stenosis/diagnostic imaging ; Coronary Vessel Anomalies/diagnostic imaging ; Electrocardiography ; Follow-Up Studies ; Humans ; Image Processing, Computer-Assisted/methods ; Predictive Value of Tests ; Stents ; Tomography, X-Ray Computed/methods
    Language English
    Publishing date 2005-03-31
    Publishing country Germany
    Document type Comparative Study ; Journal Article
    ZDB-ID 1085366-2
    ISSN 1432-1084 ; 0938-7994 ; 1613-3749
    ISSN (online) 1432-1084
    ISSN 0938-7994 ; 1613-3749
    DOI 10.1007/s10406-005-0095-8
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  6. Article: Noninvasive assessment of coronary atherosclerosis by multidetector-row computed tomography.

    Becker, Christoph R

    Expert review of cardiovascular therapy

    2004  Volume 2, Issue 5, Page(s) 721–727

    Abstract: Assessment of atherosclerotic plaque burden may help to further stratify asymptomatic subjects with an intermediate cardiac event risk according to their conventional risk factors. Coronary calcium screening is a simple and effective method to ... ...

    Abstract Assessment of atherosclerotic plaque burden may help to further stratify asymptomatic subjects with an intermediate cardiac event risk according to their conventional risk factors. Coronary calcium screening is a simple and effective method to noninvasively assess the atherosclerotic plaque burden. Standardized quantification of the coronary calcium mass will allow the results of ongoing prospective cohort studies to be used for any computed tomography (CT) scanner, electron-beam CT, as well as multidetector-row CT. Coronary multidetector-row CT angiography may have the potential to visualize vulnerable plaques that are prone to rupture and cause acute coronary symptoms. However, neither the reliability of detection nor the strategies for intervention of vulnerable plaques with multidetector-row CT have to date been proven.
    MeSH term(s) Coronary Angiography ; Coronary Artery Disease/diagnostic imaging ; Humans ; Image Processing, Computer-Assisted ; Risk Assessment ; Tomography, X-Ray Computed/methods ; Tomography, X-Ray Computed/trends
    Language English
    Publishing date 2004-09
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2192343-7
    ISSN 1744-8344 ; 1477-9072
    ISSN (online) 1744-8344
    ISSN 1477-9072
    DOI 10.1586/14779072.2.5.721
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  7. Article: Kombinierte Anwendung der nativen und kontrastverstärkten CT-Untersuchung zur Erfassung der koronaren Atherosklerose.

    Becker, Christoph R

    Herz

    2003  Volume 28, Issue 1, Page(s) 32–35

    Abstract: Background: The newest generation multi-detector-row CT scanner is allowed for investigation of the entire heart within a breathhold period of approximately 20 s. Within this time 250 slices with a thickness of 1 mm each are acquired. In conjunction ... ...

    Title translation Combined approach of contrast and non contrast CT for the assessment of coronary atherosclerosis.
    Abstract Background: The newest generation multi-detector-row CT scanner is allowed for investigation of the entire heart within a breathhold period of approximately 20 s. Within this time 250 slices with a thickness of 1 mm each are acquired. In conjunction with the ECG signal the images are acquired with a temporal resolution of 210 ms in the mid diastolic phase of the heart.
    Technical innovations: In patients with a heart rate < 60 beats per minute images free of motion artefacts can be reconstructed, that allow for assessment of the coronary artery lumen as well as calcified and non-calcified lesions in the coronary artery wall. Such lesions may be differentiated into thrombus, atheroma and fibrocalcified plaques on the base of characteristic morphologic criteria.
    Coronary heart disease in ct: The absence of coronary artery lesions in symptomatic patients with atypical chest pain allows for reliable exclusion for coronary heart disease. In asymptomatic patients with cardiovascular risk factors we first perform an investigation without contrast media to detect coronary calcifications as a marker of atherosclerosis. To assess the complete extent of coronary atherosclerosis in high risk patients, we then consider a contrast enhanced CT study.
    MeSH term(s) Angina Pectoris/diagnostic imaging ; Angina, Unstable/diagnostic imaging ; Artifacts ; Coronary Angiography ; Coronary Artery Disease/diagnostic imaging ; Coronary Thrombosis/diagnostic imaging ; Diastole/physiology ; Electrocardiography ; Heart Rate/physiology ; Humans ; Radiographic Image Enhancement ; Sensitivity and Specificity ; Tomography, Spiral Computed
    Language German
    Publishing date 2003-02
    Publishing country Germany
    Document type Comparative Study ; Evaluation Studies ; Journal Article
    ZDB-ID 8262-4
    ISSN 1615-6692 ; 0340-9937 ; 0946-1299
    ISSN (online) 1615-6692
    ISSN 0340-9937 ; 0946-1299
    DOI 10.1007/s00059-003-2449-0
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  8. Article: Assessment of coronary arteries with CT.

    Becker, Christoph R

    Radiologic clinics of North America

    2002  Volume 40, Issue 4, Page(s) 773–82, vi

    Abstract: This article is designed to provide the reader information about the technical details of retrospective ECG-gated spiral 4SCT and its applications for the detection and quantification of coronary artery calcification, the detection of coronary artery ... ...

    Abstract This article is designed to provide the reader information about the technical details of retrospective ECG-gated spiral 4SCT and its applications for the detection and quantification of coronary artery calcification, the detection of coronary artery stenoses, and the characterization of coronary atherosclerotic plaques.
    MeSH term(s) Coronary Angiography/methods ; Coronary Angiography/trends ; Coronary Disease/diagnosis ; Electrocardiography/methods ; Forecasting ; Humans ; Radiation Dosage ; Retrospective Studies ; Tomography, X-Ray Computed
    Language English
    Publishing date 2002-08-08
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 215712-3
    ISSN 1557-8275 ; 0033-8389
    ISSN (online) 1557-8275
    ISSN 0033-8389
    DOI 10.1016/s0033-8389(02)00015-5
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  9. Article ; Online: Evaluation of coronary atherosclerotic plaques.

    Becker, Christoph R / Saam, Tobias

    Cardiology clinics

    2009  Volume 27, Issue 4, Page(s) 611–617

    Abstract: In many patients, unheralded myocardial infarction associated with a mortality of approximately 20% is the first manifestation of coronary artery disease. Approximately 40% of the population is considered to have a moderate midterm risk of 10% to 20%. ... ...

    Abstract In many patients, unheralded myocardial infarction associated with a mortality of approximately 20% is the first manifestation of coronary artery disease. Approximately 40% of the population is considered to have a moderate midterm risk of 10% to 20%. Any of the stratification schemes suffers from a lack of accuracy to correctly determine the risk, and uncertainty exists regarding how to treat individuals who have been identified to be at intermediate risk. Other tools providing information about the necessity to reassure or to treat these patients are warranted. Currently, the assessment of the atherosclerotic plaque burden by CT may be able provide valid information for this cohort. This article discusses the potential value and limitations of cardiac CT for evaluating coronary atherosclerotic plaque.
    MeSH term(s) Atherosclerosis/diagnosis ; Coronary Angiography/methods ; Coronary Artery Disease/diagnosis ; Diagnosis, Differential ; Humans ; Magnetic Resonance Imaging/methods ; Reproducibility of Results ; Tomography, X-Ray Computed/methods
    Language English
    Publishing date 2009-11
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1196385-2
    ISSN 1558-2264 ; 0733-8651
    ISSN (online) 1558-2264
    ISSN 0733-8651
    DOI 10.1016/j.ccl.2009.06.013
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  10. Article: Kombinierte Anwendung der nativen und kontrastverstärkten CT-Untersuchung zur Erfassung der koronaren Atherosklerose

    Becker, Christoph R.

    Herz.

    2003  Volume 28, Issue 1, Page(s) 32

    Language German
    Document type Article
    ZDB-ID 8262-4
    Database Current Contents Medicine

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