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Computed tomography of the cervical spine: comparison of image quality between a standard-dose and a low-dose protocol using filtered back-projection and iterative reconstruction

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Becce, Fabio [UCL] Ben Salah, Yosr [UCL] Verdun, Francis R Vande Berg, Bruno [UCL] Lecouvet, Frédéric [UCL] Omoumi, Patrick [UCL]

Objective: To compare image quality of a standard-dose (SD) and a low-dose (LD) cervical spine CT protocol using filtered back-projection (FBP) and iterative reconstruction (IR). Materials and methods: Forty patients investigated by cervical spine CT were prospectively randomised into two groups: SD (120 kVp, 275 mAs) and LD (120 kVp, 150 mAs), both applying automatic tube current modulation. Data were reconstructed using both FBP and sinogram-affirmed IR. Image noise, signal-to-noise (SNR) and contrast-to-noise (CNR) ratios were measured. Two radiologists independently and blindly assessed the following anatomical structures at C3-C4 and C6-C7 levels, using a four-point scale: intervertebral disc, content of neural foramina and dural sac, ligaments, soft tissues and vertebrae. They subsequently rated overall image quality using a ten-point scale. Results: For both protocols and at each disc level, IR significantly decreased image noise and increased SNR and CNR, compared with FBP. SNR and CNR were statistically equivalent in LD-IR and SD-FBP protocols. Regardless of the dose and disc level, the qualitative scores with IR compared with FBP, and with LD-IR compared with SD-FBP, were significantly higher or not statistically different for intervertebral discs, neural foramina and ligaments, while significantly lower or not statistically different for soft tissues and vertebrae. The overall image quality scores were significantly higher with IR compared with FBP, and with LD-IR compared with SD-FBP. Conclusion: LD-IR cervical spine CT provides better image quality for intervertebral discs, neural foramina and ligaments, and worse image quality for soft tissues and vertebrae, compared with SD-FBP, while reducing radiation dose by approximately 40 %.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2013
Language Anglais
Journal information "Skeletal Radiology : journal of radiology, pathology and orthopedics" - Vol. 42, no.7, p. 937-945 (2013)
Peer reviewed yes
Publisher Springer ((Germany) Berlin )
issn 0364-2348
e-issn 1432-2161
Publication status Publié
Affiliations UCL - SSS/IREC/IMAG - Pôle d'imagerie médicale
UCL - (SLuc) Service de radiologie
MESH Subject Adolescent ; Image Interpretation, Computer-Assisted ; Male ; Middle Aged ; Observer Variation ; Radiation Dosage ; Radiation Protection ; Reproducibility of Results ; Sensitivity and Specificity ; Signal-To-Noise Ratio ; Single-Blind Method ; Adult ; Tomography, X-Ray Computed ; Young Adult ; Aged ; Aged, 80 and over ; Algorithms ; Cervical Vertebrae ; Female ; Humans ; Image Enhancement
Links
  1. Freund Michael, Sartor Klaus, Degenerative spine disorders in the context of clinical findings, 10.1016/j.ejrad.2005.12.005
  2. Douglas-Akinwande Annette C., Rydberg Jonas, Shah Mitesh V., Phillips Michael D., Caldemeyer Karen S., Lurito Joseph T., Ying Jun, Mathews Vincent P., Accuracy of Contrast-Enhanced MDCT and MRI for Identifying the Severity and Cause of Neural Foraminal Stenosis in Cervical Radiculopathy: A Prospective Study, 10.2214/ajr.09.2988
  3. Tins Bernhard, Technical aspects of CT imaging of the spine, 10.1007/s13244-010-0047-2
  4. Biswas Debdut, Bible Jesse E, Bohan Michael, Simpson Andrew K, Whang Peter G, Grauer Jonathan N, Radiation Exposure from Musculoskeletal Computerized Tomographic Scans : , 10.2106/jbjs.h.01199
  5. Lee Ting-Yim, Chhem Rethy K., Impact of new technologies on dose reduction in CT, 10.1016/j.ejrad.2010.06.036
  6. Tamm Eric P., Rong X. John, Cody Dianna D., Ernst Randy D., Fitzgerald Nancy E., Kundra Vikas, Quality Initiatives: CT Radiation Dose Reduction: How to Implement Change without Sacrificing Diagnostic Quality, 10.1148/rg.317115027
  7. Hoang Jenny K., Yoshizumi Terry T., Nguyen Giao, Toncheva Greta, Choudhury Kingshuk Roy, Gafton Andreia R., Eastwood James D., Lowry Carolyn, Hurwitz Lynne M., Variation in Tube Voltage for Adult Neck MDCT: Effect on Radiation Dose and Image Quality, 10.2214/ajr.11.6831
  8. Leswick David A., Hunt Megan M., Webster Steven T., Fladeland Derek A., Thyroid Shields versus z-Axis Automatic Tube Current Modulation for Dose Reduction at Neck CT, 10.1148/radiol.2492071430
  9. Gervaise A., Louis M., Batch T., Loeuille D., Noel A., Guillemin F., Blum A., Réduction de dose dans l’exploration du rachis lombaire grâce au scanner 320-détecteurs : étude initiale, 10.1016/s0221-0363(10)70115-3
  10. Singh Sarabjeet, Kalra Mannudeep K., Hsieh Jiang, Licato Paul E., Do Synho, Pien Homer H., Blake Michael A., Abdominal CT: Comparison of Adaptive Statistical Iterative and Filtered Back Projection Reconstruction Techniques, 10.1148/radiol.10092212
  11. Pontana François, Pagniez Julien, Flohr Thomas, Faivre Jean-Baptiste, Duhamel Alain, Remy Jacques, Remy-Jardin Martine, Chest computed tomography using iterative reconstruction vs filtered back projection (Part 1): evaluation of image noise reduction in 32 patients, 10.1007/s00330-010-1990-5
  12. Moscariello Antonio, Takx Richard A. P., Schoepf U. Joseph, Renker Matthias, Zwerner Peter L., O’Brien Terrence X., Allmendinger Thomas, Vogt Sebastian, Schmidt Bernhard, Savino Giancarlo, Fink Christian, Bonomo Lorenzo, Henzler Thomas, Coronary CT angiography: image quality, diagnostic accuracy, and potential for radiation dose reduction using a novel iterative image reconstruction technique—comparison with traditional filtered back projection, 10.1007/s00330-011-2164-9
  13. Winklehner Anna, Karlo Christoph, Puippe Gilbert, Schmidt Bernhard, Flohr Thomas, Goetti Robert, Pfammatter Thomas, Frauenfelder Thomas, Alkadhi Hatem, Raw data-based iterative reconstruction in body CTA: evaluation of radiation dose saving potential, 10.1007/s00330-011-2227-y
  14. Wirth Stefan, Meindl Thomas, Treitl Marcus, Pfeifer Klaus-Jürgen, Reiser Maximilian, Comparison of different patient positioning strategies to minimize shoulder girdle artifacts in head and neck CT, 10.1007/s00330-006-0168-7
  15. Mulkens T.H., Marchal P., Daineffe S., Salgado R., Bellinck P., Rijdt B. t., Kegelaers B., Termote J.-L., Comparison of Low-Dose With Standard-Dose Multidetector CT in Cervical Spine Trauma, 10.3174/ajnr.a0608
  16. Deak Paul D., Smal Yulia, Kalender Willi A., Multisection CT Protocols: Sex- and Age-specific Conversion Factors Used to Determine Effective Dose from Dose-Length Product, 10.1148/radiol.10100047
  17. Bongartz G, Golding SJ, Jurik AG, et al. European guidelines on quality criteria for computed tomography. EUR 16262 http://www.drs.dk/guidelines/ct/quality/index.htm accessed October 13, 2011.
  18. Jones B, Jarvis P, Lewis J A, Ebbutt A F, Trials to assess equivalence: the importance of rigorous methods, 10.1136/bmj.313.7048.36
  19. Brenner David J., Hall Eric J., Computed Tomography — An Increasing Source of Radiation Exposure, 10.1056/nejmra072149
  20. Gervaise Alban, Osemont Benoît, Lecocq Sophie, Noel Alain, Micard Emilien, Felblinger Jacques, Blum Alain, CT image quality improvement using adaptive iterative dose reduction with wide-volume acquisition on 320-detector CT, 10.1007/s00330-011-2271-7
  21. Dougeni E., Faulkner K., Panayiotakis G., A review of patient dose and optimisation methods in adult and paediatric CT scanning, 10.1016/j.ejrad.2011.05.025
Bibliographic reference Becce, Fabio ; Ben Salah, Yosr ; Verdun, Francis R ; Vande Berg, Bruno ; Lecouvet, Frédéric ; et. al. Computed tomography of the cervical spine: comparison of image quality between a standard-dose and a low-dose protocol using filtered back-projection and iterative reconstruction. In: Skeletal Radiology : journal of radiology, pathology and orthopedics, Vol. 42, no.7, p. 937-945 (2013)
Permanent URL http://hdl.handle.net/2078.1/156212