Literature DB >> 26960541

A noise-optimized virtual monochromatic reconstruction algorithm improves stent visualization and diagnostic accuracy for detection of in-stent re-stenosis in lower extremity run-off CT angiography.

Stefanie Mangold1,2, Carlo N De Cecco1, U Joseph Schoepf3,4, Ricardo T Yamada1, Akos Varga-Szemes1, Andrew C Stubenrauch1, Damiano Caruso1,5, Stephen R Fuller1, Thomas J Vogl1,6, Konstantin Nikolaou2, Thomas M Todoran7, Julian L Wichmann1,6.   

Abstract

PURPOSE: To evaluate the impact of noise-optimized virtual monochromatic imaging (VMI+) on stent visualization and accuracy for in-stent re-stenosis at lower extremity dual-energy CT angiography (DE-CTA).
MATERIAL AND METHODS: We evaluated third-generation dual-source DE-CTA studies in 31 patients with prior stent placement. Images were reconstructed with linear blending (F_0.5) and VMI+ at 40-150 keV. In-stent luminal diameter was measured and contrast-to-noise ratio (CNR) calculated. Diagnostic confidence was determined using a five-point scale. In 21 patients with invasive catheter angiography, accuracy for significant re-stenosis (≥50 %) was assessed at F_0.5 and 80 keV-VMI+ chosen as the optimal energy level based on image-quality analysis.
RESULTS: At CTA, 45 stents were present. DSA was available for 28 stents whereas 12 stents showed significant re-stenosis. CNR was significantly higher with ≤80 keV-VMI+ (17.9 ± 6.4-33.7 ± 12.3) compared to F_0.5 (16.9 ± 4.8; all p < 0.0463); luminal stent diameters were increased at ≥70 keV (5.41 ± 1.8-5.92 ± 1.7 vs. 5.27 ± 1.8, all p < 0.001) and diagnostic confidence was highest at 70-80 keV-VMI+ (4.90 ± 0.48-4.88 ± 0.63 vs. 4.60 ± 0.66, p = 0.001, 0.0042). Sensitivity, negative predictive value and accuracy for re-stenosis were higher with 80 keV-VMI+ (100, 100, 96.4 %) than F_0.5 (90.9, 94.1, 89.3 %).
CONCLUSION: 80 keV-VMI+ improves image quality, diagnostic confidence and accuracy for stent evaluation at lower extremity DE-CTA. KEY POINTS: • The impact of noise-optimized virtual monochromatic imaging on stent visualization was assessed. • Virtual monochromatic imaging significantly improves stent lumen visualization and diagnostic confidence. • At 80 keV diagnostic performance for detection of in-stent restenosis was increased. • 80 keV virtual monochromatic images are recommended for stent evaluation of lower extremity vasculature.

Entities:  

Keywords:  CT angiography; Diagnostic accuracy; Dual-energy; Stent visualization; Virtual monochromatic imaging

Mesh:

Year:  2016        PMID: 26960541     DOI: 10.1007/s00330-016-4304-8

Source DB:  PubMed          Journal:  Eur Radiol        ISSN: 0938-7994            Impact factor:   5.315


  30 in total

1.  Evaluation of different keV-settings in dual-energy CT angiography of the aorta using advanced image-based virtual monoenergetic imaging.

Authors:  Martin Beeres; Jesko Trommer; Claudia Frellesen; Nour-Eldin A Nour-Eldin; Jan E Scholtz; Eva Herrmann; Thomas J Vogl; Julian L Wichmann
Journal:  Int J Cardiovasc Imaging       Date:  2015-08-02       Impact factor: 2.357

2.  Noninvasive assessment of coronary in-stent restenosis by dual-source computed tomography.

Authors:  Tobias Pflederer; Mohamed Marwan; Alexandra Renz; Sven Bachmann; Dieter Ropers; Axel Kuettner; Katharina Anders; Fabian Bamberg; Werner G Daniel; Stephan Achenbach
Journal:  Am J Cardiol       Date:  2009-01-24       Impact factor: 2.778

3.  First experience with single-source, dual-energy CCTA for monochromatic stent imaging.

Authors:  Julia Stehli; Tobias A Fuchs; Adrian Singer; Sacha Bull; Olivier F Clerc; Mathias Possner; Oliver Gaemperli; Ronny R Buechel; Philipp A Kaufmann
Journal:  Eur Heart J Cardiovasc Imaging       Date:  2014-12-18       Impact factor: 6.875

4.  The importance of spectral separation: an assessment of dual-energy spectral separation for quantitative ability and dose efficiency.

Authors:  Bernhard Krauss; Katharine L Grant; Bernhard T Schmidt; Thomas G Flohr
Journal:  Invest Radiol       Date:  2015-02       Impact factor: 6.016

5.  High-definition computed tomography for coronary artery stents imaging: Initial evaluation of the optimal reconstruction algorithm.

Authors:  Xiaoming Cui; Tao Li; Xin Li; Weihua Zhou
Journal:  Eur J Radiol       Date:  2015-02-16       Impact factor: 3.528

6.  Assessment of coronary artery stents by 16 slice computed tomography.

Authors:  M Gilard; J C Cornily; P Y Pennec; G Le Gal; M Nonent; J Mansourati; J J Blanc; J Boschat
Journal:  Heart       Date:  2005-04-21       Impact factor: 5.994

7.  Closing in on the K edge: coronary CT angiography at 100, 80, and 70 kV-initial comparison of a second- versus a third-generation dual-source CT system.

Authors:  Mathias Meyer; Holger Haubenreisser; U Joseph Schoepf; Rozemarijn Vliegenthart; Christianne Leidecker; Thomas Allmendinger; Ralf Lehmann; Sonja Sudarski; Martin Borggrefe; Stefan O Schoenberg; Thomas Henzler
Journal:  Radiology       Date:  2014-05-31       Impact factor: 11.105

8.  Optimization of keV-settings in abdominal and lower extremity dual-source dual-energy CT angiography determined with virtual monoenergetic imaging.

Authors:  Sonja Sudarski; Paul Apfaltrer; John W Nance; David Schneider; Mathias Meyer; Stefan O Schoenberg; Christian Fink; Thomas Henzler
Journal:  Eur J Radiol       Date:  2013-06-10       Impact factor: 3.528

Review 9.  Lower extremity arterial disease: multidetector CT angiography meta-analysis.

Authors:  Majanka H Heijenbrok-Kal; Marc C J M Kock; M G Myriam Hunink
Journal:  Radiology       Date:  2007-09-11       Impact factor: 11.105

10.  Optimal Scanning Protocols for Dual-Energy CT Angiography in Peripheral Arterial Stents: An in Vitro Phantom Study.

Authors:  Abdulrahman Almutairi; Zhonghua Sun; Zakariya Al Safran; Abduljaleel Poovathumkadavi; Suha Albader; Husam Ifdailat
Journal:  Int J Mol Sci       Date:  2015-05-20       Impact factor: 5.923

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  9 in total

1.  Modified calcium subtraction in dual-energy CT angiography of the lower extremity runoff: impact on diagnostic accuracy for stenosis detection.

Authors:  Domenico De Santis; Carlo N De Cecco; U Joseph Schoepf; John W Nance; Ricardo T Yamada; Brooke A Thomas; Katharina Otani; Brian E Jacobs; D Alan Turner; Julian L Wichmann; Marwen Eid; Akos Varga-Szemes; Damiano Caruso; Katharine L Grant; Bernhard Schmidt; Thomas J Vogl; Andrea Laghi; Moritz H Albrecht
Journal:  Eur Radiol       Date:  2019-02-25       Impact factor: 5.315

Review 2.  Dual energy computed tomography virtual monoenergetic imaging: technique and clinical applications.

Authors:  Tommaso D'Angelo; Giuseppe Cicero; Silvio Mazziotti; Giorgio Ascenti; Moritz H Albrecht; Simon S Martin; Ahmed E Othman; Thomas J Vogl; Julian L Wichmann
Journal:  Br J Radiol       Date:  2019-04-09       Impact factor: 3.039

3.  Comparison of image quality and radiation dose between split-filter dual-energy images and single-energy images in single-source abdominal CT.

Authors:  André Euler; Markus M Obmann; Zsolt Szucs-Farkas; Achille Mileto; Caroline Zaehringer; Anna L Falkowski; David J Winkel; Daniele Marin; Bram Stieltjes; Bernhard Krauss; Sebastian T Schindera
Journal:  Eur Radiol       Date:  2018-02-19       Impact factor: 5.315

4.  Contrast media injection protocol optimization for dual-energy coronary CT angiography: results from a circulation phantom.

Authors:  Domenico De Santis; Damiano Caruso; U Joseph Schoepf; Marwen Eid; Moritz H Albrecht; Taylor M Duguay; Akos Varga-Szemes; Andrea Laghi; Carlo N De Cecco
Journal:  Eur Radiol       Date:  2018-02-27       Impact factor: 5.315

5.  Optimisation of window settings for traditional and noise-optimised virtual monoenergetic imaging in dual-energy computed tomography pulmonary angiography.

Authors:  Tommaso D'Angelo; Andreas M Bucher; Lukas Lenga; Christophe T Arendt; Julia L Peterke; Damiano Caruso; Silvio Mazziotti; Alfredo Blandino; Giorgio Ascenti; Ahmed E Othman; Simon S Martin; Doris Leithner; Thomas J Vogl; Julian L Wichmann
Journal:  Eur Radiol       Date:  2017-10-10       Impact factor: 5.315

6.  Spinal dual-energy computed tomography: improved visualisation of spinal tumorous growth with a noise-optimised advanced monoenergetic post-processing algorithm.

Authors:  Mareen Kraus; Jakob Weiss; Nadja Selo; Thomas Flohr; Mike Notohamiprodjo; Fabian Bamberg; Konstantin Nikolaou; Ahmed E Othman
Journal:  Neuroradiology       Date:  2016-08-11       Impact factor: 2.804

7.  Dual energy CT angiography in peripheral arterial stents: optimal scanning protocols with regard to image quality and radiation dose.

Authors:  Abdulrahman Almutairi; Zakariya Al Safran; Saif A AlZaabi; Zhonghua Sun
Journal:  Quant Imaging Med Surg       Date:  2017-10

8.  Assessment of Virtual Monoenergetic Images in Run-off Computed Tomography Angiography: A Comparison Study to Conventional Images From Spectral Detector Computed Tomography.

Authors:  Haiyan Ren; Yanhua Zhen; Zheng Gong; Chuanzhuo Wang; Zhihui Chang; Jiahe Zheng
Journal:  J Comput Assist Tomogr       Date:  2021 Mar-Apr 01       Impact factor: 2.081

9.  Feasibility of low-dose contrast media in run-off CT angiography on dual-layer spectral detector CT.

Authors:  Haiyan Ren; Yanhua Zhen; Zheng Gong; Chuanzhuo Wang; Zhihui Chang; Jiahe Zheng
Journal:  Quant Imaging Med Surg       Date:  2021-05
  9 in total

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