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Burgstahler C, Cipowicz H, Thomas C, Schabel C, Mangold S, Ketelsen D, Claussen CD, Niess AM, Tsiflikas I. Coronary and carotid atherosclerosis in asymptomatic male marathon runners. Scand J Med Sci Sports 2018; 28:1397-1403. [PMID: 29239051 DOI: 10.1111/sms.13035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/04/2017] [Indexed: 12/17/2022]
Abstract
The aim of the study was to evaluate the diagnostic accuracy of carotid ultrasound (CU) to predict coronary atherosclerosis in asymptomatic male marathon runners. A total of 49 male marathon runners older than 45 years (mean age 53.3 ± 7.2 years, range 45-74 years) received CU and cardiac CT angiography (CTA) including calcium scoring (CS). Results of CU and CTA were classified binary: 1. Absence of atherosclerosis and 2. Presence of atherosclerosis. The extent of atherosclerosis was not primary end point of the study. Mean PROCAM score was 2.3% (SD 2.2, range 0.44%-12.34%). One person had to be excluded from analysis (one missing CT-scan). From the remaining 48 marathon runners, 17 (35.4%) had carotid atherosclerosis and 22 (45.8%) coronary atherosclerosis. Atherosclerosis in either exam was diagnosed in 27/48 (56.3%) marathon runners. Diagnostic accuracy of CU to predict coronary atherosclerosis was: sensitivity 54.55% (95% CI 32.2-75.6), specificity 80.8% (CI 60.6-93.4), positive predictive value 70.6 (CI 44.1-89.9), negative predictive value 67.7 (CI 48.6-83.3) with a positive likelihood ratio of 2.84 (CI 1.18-6.82) and a negative likelihood ratio of 0.56 (CI 0.34-0.92). Coronary and/or carotid atherosclerosis can be detected in more than 50% of male marathon runners aged older than 45 years. The diagnostic value of carotid ultrasound to predict coronary atherosclerosis is low but higher than the accuracy of rest- or stress-ECG. As outcome studies in sportsmen are still missing, the routine evaluation of the carotid arteries by ultrasound or even cardiac CT cannot be recommended at present. Furthermore, the incidence of atherosclerosis by our method in normal population is not known.
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Affiliation(s)
- C Burgstahler
- Department of Sports Medicine, University of Tuebingen, Tuebingen, Germany
| | - H Cipowicz
- Department of Sports Medicine, University of Tuebingen, Tuebingen, Germany
| | - C Thomas
- Department of Diagnostic and Interventional Radiology, University of Tuebingen, Tuebingen, Germany
| | - C Schabel
- Department of Diagnostic and Interventional Radiology, University of Tuebingen, Tuebingen, Germany
| | - S Mangold
- Department of Diagnostic and Interventional Radiology, University of Tuebingen, Tuebingen, Germany
| | - D Ketelsen
- Department of Diagnostic and Interventional Radiology, University of Tuebingen, Tuebingen, Germany
| | - C D Claussen
- Department of Diagnostic and Interventional Radiology, University of Tuebingen, Tuebingen, Germany
| | - A M Niess
- Department of Sports Medicine, University of Tuebingen, Tuebingen, Germany
| | - I Tsiflikas
- Department of Diagnostic and Interventional Radiology, University of Tuebingen, Tuebingen, Germany
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Bongers M, Bier G, Schabel C, Nikolaou K, Horger M. Frequenzselektive, nichtlineare Fensterung zur Steigerung der Erkennbarkeit von Lungenarterienembolien und venösen Thrombosen in der Computertomografie. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M Bongers
- Radiologische Klinik Universitätsklinikum Tübingen, Abteilung für Diagnostische und Interventionelle Radiologie, Tübingen
| | - G Bier
- Radiologische Klinik Universitätsklinikum Tübingen, Abteilung für Diagnostische und Interventionelle Neuroradiologie, Tübingen
| | - C Schabel
- Radiologische Klinik Universitätsklinikum Tübingen, Abteilung für Diagnostische und Interventionelle Radiologie, Tübingen
| | - K Nikolaou
- Radiologische Klinik Universitätsklinikum Tübingen, Abteilung für Diagnostische und Interventionelle Radiologie, Tübingen
| | - M Horger
- Radiologische Klinik Universitätsklinikum Tübingen, Abteilung für Diagnostische und Interventionelle Radiologie, Tübingen
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Bongers MN, Bier G, Kloth C, Schabel C, Fritz J, Nikolaou K, Horger M. Frequency Selective Non-Linear Blending to Improve Image Quality in Liver CT. ROFO-FORTSCHR RONTG 2016; 188:1163-1168. [PMID: 27907941 DOI: 10.1055/s-0042-116440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Purpose: To evaluate the effects of a new frequency selective non-linear blending (NLB) algorithm on the contrast resolution of liver CT with low intravascular concentration of iodine contrast. Materials and Methods: Our local ethics committee approved this retrospective study. The informed consent requirement was waived. CT exams of 25 patients (60 % female, mean age: 65 ± 16 years of age) with late phase CT scans of the liver were included as a model for poor intrahepatic vascular contrast enhancement. Optimal post-processing settings to enhance the contrast of hepatic vessels were determined. Outcome variables included signal-to-noise (SNR) and contrast-to-noise ratios (CNR) of hepatic vessels and SNR of liver parenchyma of standard and post-processed images. Image quality was quantified by two independent readers using Likert scales. Results: The post-processing settings for the visualization of hepatic vasculature were optimal at a center of 115HU, delta of 25HU, and slope of 5. Image noise was statistically indifferent between standard and post-processed images. The CNR between the hepatic vasculature (HV) and liver parenchyma could be significantly increased for liver veins (CNRStandard 1.62 ± 1.10, CNRNLB 3.6 ± 2.94, p = 0.0002) and portal veins (CNRStandard 1.31 ± 0.85, CNRNLB 2.42 ± 3.03, p = 0.046). The SNR of liver parenchyma was significantly higher on post-processed images (SNRNLB 11.26 ± 3.16, SNRStandard 8.85 ± 2.27, p = 0.008). The overall image quality and depiction of HV were significantly higher on post-processed images (NLBDHV: 4 [3 - 4.75], StandardDHV: 2 [1.3 - 2.5], p = < 0.0001; NLBIQ: 4 [4 - 4], StandardIQ: 2 [2 - 3], p = < 0.0001). Conclusion: The use of a frequency selective non-linear blending algorithm increases the contrast resolution of liver CT and can improve the visibility of the hepatic vasculature in the setting of a low contrast ratio between vessels and the parenchyma. Key Points: • Using the new frequency selective non-linear blending algorithm is feasible in contrast-enhanced liver CT.• Optimal post-processing settings make it possible to significantly increase the contrast resolution of liver CT without affecting image noise.• Especially in low contrast CT images, the novel algorithm is capable of significantly increasing image quality. Citation Format: • Bongers MN, Bier G, Kloth C et al. Frequency Selective Non-Linear Blending to Improve Image Quality in Liver CT. Fortschr Röntgenstr 2016; 188: 1163 - 1168.
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Affiliation(s)
- M N Bongers
- Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Germany
| | - G Bier
- Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Germany
| | - C Kloth
- Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Germany
| | - C Schabel
- Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Germany
| | - J Fritz
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, United States
| | - K Nikolaou
- Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Germany
| | - M Horger
- Department of Diagnostic and Interventional Radiology, University Hospital of Tübingen, Germany
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Bongers M, Schabel C, Stefan N, Häring H, Fritsche A, Claussen C, Nikolaou K, Schick F, Machann J. Einfluss der Körperfettverteilung auf die systemische Low-Grade-Inflammation und Insulinsensitivität in Prädiabetikern. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Schabel C, Bongers M, Gatidis S, Kupferschläger J, Schüle S, la Fougère C, Nikolaou K, Pfannenberg C. Verbesserung der Schwächungskorrektur des PET/CT mit einem neuartigen Algorithmus zur iterativen Metallartefaktreduktion (IMAR). ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bongers M, Bier G, Hendrik, Ditt H, Kloth C, Schabel C, Nikolaou K, Horger M. Vergleich eines neuartigen, frequenzselektiven Algorithmus nicht linearer Fensterung, monoenergetischer niedrig-keV Extrapolationen und niedrig-kV Akquisitionen zur Steigerung des Bildkontrastes. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Schabel C, Bongers MN, Ketelsen D, Syha R, Thomas C, Homann G, Notohamiprodjo M, Nikolaou K, Bamberg F. [Diagnostic accuracy of dual energy CT angiography in patients with diabetes mellitus]. Radiologe 2016; 55:314-22. [PMID: 25809927 DOI: 10.1007/s00117-014-2721-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Peripheral arterial disease (PAD) represents a major and highly prevalent complication in patients with diabetes mellitus. The diagnostic, non-invasive work-up by computed tomography angiography (CTA) is limited in the presence of extensive calcification. The aim of the study was to determine the diagnostic accuracy of dual energy CTA (DE-CTA) for the detection and characterization of PAD in patients with diabetes mellitus. MATERIAL AND METHODS In this study 30 diabetic patients with suspected or known PAD were retrospectively included in the analysis. All subjects underwent DE-CTA (Somatom Definition Flash, Siemens Healthcare, Erlangen, Germany) prior to invasive angiography, which served as the reference standard. Blinded analysis included assessment of the presence and degree of peripheral stenosis on curved multiplanar reformatting (MPR) and maximum intensity projections (MIP). Conventional measures of diagnostic accuracy were derived. RESULTS Among the 30 subjects included in the analysis (83% male, mean age 70.0 ± 10.5 years, 83% diabetes type 2), the prevalence of critical stenosis in 331 evaluated vessel segments was high (30%). Dual energy CT identified critical stenoses with a high sensitivity and good specificity using curved MPR (100% and 93.1%, respectively) and MIP images (99% and 91.8%, respectively). In stratified analysis, the diagnostic accuracy was higher for stenosis pertaining to the pelvic and thigh vessels as compared with the lower extremities (curved MPR accuracy 97.1% vs. 99.2 vs. 90.9%; respectively, p < 0.001). CONCLUSION The use of DE-CTA allows reliable detection and characterization of peripheral arterial stenosis in patients with diabetes mellitus with higher accuracy in vessels in the pelvic and thigh regions compared with the vessels in the lower legs.
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Affiliation(s)
- C Schabel
- Abteilung für Diagnostische und Interventionelle Radiologie, Klinikum der Eberhard-Karls-Universität, Hoppe-Seyler-Str. 3, 72076, Tübingen, Deutschland,
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Bongers M, Schabel C, Homann G, Mangold S, Tsiflikas I, Ketelsen D, Nikolaou K, Thomas C. Das Potential von Gadolinium als Kontrastmittel in der Dual-Energy Computertomografie – eine ex vivo Phantom-Studie. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1550858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Homann G, Kloth C, Bongers M, Schabel C, Nikolaou K, Notohamiprodjo M. Beschleunigung der Evaluationszeit von Rippenfrakturen durch softwaregestützte Auffaltung der Rippen entlang ihrer Längsachse. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1550788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Tsiflikas I, Thomas C, Fallmann C, Schabel C, Mangold S, Ketelsen D, Claussen C, Axmann D, Schroeder S, Burgstahler C. Prevalence of Subclinical Coronary Artery Disease in Middle-Aged, Male Marathon Runners Detected by Cardiac CT. ROFO-FORTSCHR RONTG 2015; 187:561-8. [DOI: 10.1055/s-0034-1399221] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- I. Tsiflikas
- Diagnostic and Interventional Radiology, University Hospital of Tuebingen, Germany
| | - C. Thomas
- Diagnostic and Interventional Radiology, University Hospital of Tuebingen, Germany
| | - C. Fallmann
- Sports Medicine, University Hospital of Tuebingen, Germany
| | - C. Schabel
- Diagnostic and Interventional Radiology, University Hospital of Tuebingen, Germany
| | - S. Mangold
- Diagnostic and Interventional Radiology, University Hospital of Tuebingen, Germany
| | - D. Ketelsen
- Diagnostic and Interventional Radiology, University Hospital of Tuebingen, Germany
| | - C. Claussen
- Diagnostic and Interventional Radiology, University Hospital of Tuebingen, Germany
| | - D. Axmann
- Center of Dentistry Oral Medicine and Maxillofacial Surgery, University Hospital of Tuebingen, Germany
| | - S. Schroeder
- Internal Medicine, Klinikum am Eichert, Goeppingen, Germany
| | - C. Burgstahler
- Center of Dentistry Oral Medicine and Maxillofacial Surgery, University Hospital of Tuebingen, Germany
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Brodoefel H, Bender B, Schabel C, Fenchel M, Ernemann U, Korn A. Potential of combining iterative reconstruction with noise efficient detector design: aggressive dose reduction in head CT. Br J Radiol 2015; 88:20140404. [PMID: 25827204 DOI: 10.1259/bjr.20140404] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE With further increase of CT numbers and their dominant contribution to medical exposure, there is a recent quest for more effective dose control. While reintroduction of iterative reconstruction (IR) has proved its potential in many applications, a novel focus is placed on more noise efficient detectors. Our purpose was to assess the potential of IR in combination with an integrated circuit detector (ICD) for aggressive dose reduction in head CT. METHODS Non-contrast low-dose head CT [190 mAs; weighted volume CT dose index (CTDIvol), 33.2 mGy] was performed in 50 consecutive patients, using a new noise efficient detector and IR. Images were assessed in terms of quantitative and qualitative image quality and compared with standard dose acquisitions (320 mAs; CTDIvol, 59.7 mGy) using a conventional detector and filtered back projection. RESULTS By combining ICD and IR in low-dose examinations, the signal to noise was improved by about 13% above the baseline level in the standard-dose control group. Both, contrast-to-noise ratio (2.02 ± 0.6 vs 1.88 ± 0.4; p = 0.18) and objective measurements of image sharpness (695 ± 84 vs 705 ± 151 change in Hounsfield units per pixel; p = 0.79) were fully preserved in the low-dose group. Likewise, there was no significant difference in the grading of several subjective image quality parameters when both noise-reducing strategies were used in low-dose examinations. CONCLUSION Combination of noise efficient detector with IR allows for meaningful dose reduction in head CT without compromise of standard image quality. ADVANCES IN KNOWLEDGE Our study demonstrates the feasibility of almost 50% dose reduction in head CT dose (1.1 mSv per scan) through combination of novel dose-reducing strategies.
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Affiliation(s)
- H Brodoefel
- 1 Department of Diagnostic and Interventional Radiology, University of Tübingen, Tübingen, Germany
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Mangold S, Gatidis S, Schabel C, Bongers M, Luz O, Claussen CD, Thomas C. Monoenergetische Bildgebung mittels Single-Source Dual Energy CT: Einsatz zur Reduktion von Metallartefakten. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Thomas C, Schabel C, Bongers M, Katja W, Claussen C, Horger M. Dual Energy CT: Direkte Knochenmarkdarstellung durch Subtraktion von Kalzium bei Multiplem Myelom. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Schabel C, Bongers M, Mangold S, Grosse U, Schick F, Claussen C, Thomas C. Voll integrierte CT Detektortechnologie: Evaluation des Dosiseinsparpotentials. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372721] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Klumpp B, Schabel C, Eigentler T, Garbe C, Claussen C, Thomas C. Jodselektive Bildgebung mit Dual Energy Computertomografie zur Verlaufsbeobachtung von Melanommetastasen unter Systemtherapie. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372797] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Grosse U, Hetzel J, Gündel L, Gatidis S, Syha R, Schabel C, Horger M, Claussen CD. Endobronchiale Coil-Implantation bei heterogenem Lungenemphysem – eine auf die Lungenlappen bezogene Analyse quantitativer CT-Veränderungen zum Verständnis der zugrundeliegenden Wirkmechanismen. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Schabel C, Bongers M, Sedlmair M, Korn A, Grosse U, Mangold S, Claussen CD, Thomas C. Assessment of the hepatic veins in poor contrast conditions using dual energy CT: evaluation of a novel monoenergetic extrapolation software algorithm. ROFO-FORTSCHR RONTG 2014; 186:591-7. [PMID: 24756426 DOI: 10.1055/s-0034-1366423] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE To evaluate a novel monoenergetic post-processing algorithm (MEI+) in patients with poor intrahepatic contrast enhancement. MATERIALS AND METHODS 25 patients were retrospectively included in this study. Late-phase imaging of the upper abdomen, which was acquired in dual-energy mode (100/140 kV), was used as a model for poor intrahepatic contrast enhancement. Traditional monoenergetic images (MEI), linearly weighted mixed images with different mixing ratios (MI), sole 100 and 140 kV and MEI+ images were calculated. MEI+ is a novel technique which applies frequency-based mixing of the low keV images and an image of optimal keV from a noise perspective to combine the benefits of both image stacks. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of the intrahepatic vasculature (IHV) and liver parenchyma (LP) were objectively measured and depiction of IHV was subjectively rated and correlated with portal venous imaging by two readers in consensus. RESULTS MEI+ was able to increase the SNR of the IHV (5.7 ± 0.4 at 40keV) and LP (4.9 ± 1.0 at 90keV) and CNR (2.1 ± 0.6 at 40keV) greatly compared to MEI (5.1 ± 1.1 at 80keV, 4.7 ± 1.0 at 80keV, 1.0 ± 0.4 at 70keV), MI (5.2 ± 1.1 M5:5, 4.8 ± 1.0 M5:5, 1.0 ± 3.5 M9:1), sole 100 kV images (4.4 ± 1.0, 3.7 ± 0.8, 1.0 ± 0.3) and 140 kV images (2.8 ± 0.5, 3.1 ± 0.6, 0.1 ± 0.2). Subjective assessment rated MEI+ of virtual 40 keV superior to all other images. CONCLUSION MEI+ is a very promising algorithm for monoenergetic extrapolation which is able to overcome noise limitations associated with traditional monoenergetic techniques at low virtual keV levels and consequently does not suffer from a decline of SNR and CNR at low keV values. This algorithm allows an improvement of IHV depiction in the presence of poor contrast. KEY POINTS • The evaluated new image-based algorithm for virtual monoenergetic imaging allows calculating low virtual keV images from dual energy datasets with significantly improved contrast-to-noise ratios. • The image based novel monoenergetic extrapolation algorithm applies frequency-based mixing of the low keV images and an image of optimal keV from a noise perspective to combine the benefits of both image stacks.• When compared to traditional monoenergetic images, the novel monoenergetic algorithm has improved contrast-to-noise ratios for both low and high virtual keV images.• Contrast-enhanced dual energy images with poor contrast conditions can be significantly improved, e.g. late phase imaging of the liver.
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Affiliation(s)
- C Schabel
- Department of Diagnostic and Interventional Radiology, University Hospital of Tuebingen
| | - M Bongers
- Department of Diagnostic and Interventional Radiology, University Hospital of Tuebingen
| | | | - A Korn
- Department of Diagnostic and Interventional Neuroradiology, University Hospital of Tuebingen
| | - U Grosse
- Department of Diagnostic and Interventional Radiology, University Hospital of Tuebingen
| | - S Mangold
- Department of Diagnostic and Interventional Radiology, University Hospital of Tuebingen
| | - C D Claussen
- Department of Diagnostic and Interventional Radiology, University Hospital of Tuebingen
| | - C Thomas
- Department of Diagnostic and Interventional Radiology, University Hospital of Tuebingen
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Grosse U, Springer F, Grözinger G, Schabel C, Martirosian P, Schick F, Syha R, Claussen CD. Einfluss körperlichen Aktivität auf T1- und T2*- Relaxationszeiten der Achillessehne – Eine 3T MRT-Untersuchung an gesunden Probanden. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tsiflikas I, Thomas C, Schabel C, Fallmann C, Ketelsen D, Mangold S, Claussen CD, Burgstahler C. Prävalenz subklinischer Koronarer Herzkrankheit bei asymptomatischen Marathonläufern: Detektion mittels koronarer CT-Angiografie. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Grosse U, Grözinger G, Schabel C, Springer F, Syha R, Schick F, Horger M, Claussen CD. Veränderungen morphologischer und Perfusions-basierter Messwerte von Patienten mit rheumatoider Arthritis unter Therapie mit Anti-IL-6 Antikörpern. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Korn A, Bender B, Fenchel M, Spira D, Schabel C, Thomas C, Flohr T, Claussen C, Bhadelia R, Ernemann U, Brodoefel H. Sinogram affirmed iterative reconstruction in head CT: Improvement of objective and subjective image quality with concomitant radiation dose reduction. Eur J Radiol 2013; 82:1431-5. [DOI: 10.1016/j.ejrad.2013.03.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 03/06/2013] [Accepted: 03/10/2013] [Indexed: 10/27/2022]
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Schabel C, Bongers MN, Stefan N, Fritsche A, Claussen CD, Schick F, Machann J. MR basierte Muskelvolumetrie der unteren Extremitäten von 196 Probanden und Korrelation mit Alter, Geschlecht, anthropomorphen Charakteristika und einer Lebensstilintervention. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Springer F, Syha R, Grosse U, Schabel C, Claussen CD, Schick F. Kontrastoptimierung in der UTE-Bildgebung. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Schabel C, Ketelsen D, Fenchel M, Schmidt B, Flohr TG, Korn A, Wuerslin C, Thomas C, Tsiflikas I, Claussen CD, Heuschmid M. Klinische Evaluation der neuartigen Sinogram-Affirmed Iterative Reconstruction Technik (SAFIRE) als Strategie zur Dosisreduktion in der CT-Angiographie. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Schabel C, Hetzel J, Joanoviciu SD, Horger M. [Pulmonary alveolar proteinosis]. ROFO-FORTSCHR RONTG 2012; 184:287-9. [PMID: 22441940 DOI: 10.1055/s-0031-1274793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Schabel C, Schweinzer K, Ketelsen D, Brechtel K, Horger M. [Hereditary hemorrhagic teleangiectasy]. ROFO-FORTSCHR RONTG 2012; 184:83-6. [PMID: 22274844 DOI: 10.1055/s-0031-1274728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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