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Clinical evaluation of General Electric new Swiftscan solution in bone scintigraphy on NaI-camera: A head to head comparison with Siemens Symbia


Autoři: F. Thibault aff001;  M. Bailly aff001;  G. Le Rouzic aff001;  G. Metrard aff001
Působiště autorů: Nuclear Medicine Department, CHR Orléans, ORLEANS, FRANCE aff001
Vyšlo v časopise: PLoS ONE 14(9)
Kategorie: Research Article
doi: https://doi.org/10.1371/journal.pone.0222490

Souhrn

Purpose

The General Electric (GE) Swiftscan solution combines a new Low Energy High Resolution and Sensitivity collimator (LEHRS) with image processing (Clarity 2D) and tomographic step and shoot continuous mode. The aim of this study was to compare clinical and physical performances of this new technology in bone scintigraphy.

Methods

Physical phantom measurements were performed using GE LEHRS, GE Low Energy High Resolution (LEHR) and Siemens LEHR collimators. These measurements were associated with a prospective clinical study. Sixty-seven patients referred for bone scintigraphy were enrolled from February to July 2018. Each patient underwent two acquisitions consecutively on GE and Siemens gamma camera, using respectively Swiftscan solution and LEHR collimator.

Results

On planar acquisitions, maximum sensitivity was 100 cts/MBq for Siemens LEHR. GE SwiftScan LEHRS and GE LEHR maximum sensitivity were respectively 9% and 22% lower. Using Clarity 2D, GE Swiftscan LEHRS spatial resolution was the best with 9.2 mm versus 10.1 mm and 10.6 mm for GE LEHR and Siemens LEHR collimators. In tomographic mode, the sensitivity of GE Swiftscan solution was superior to both LEHR systems (16% and 25% respectively for Siemens and GE). There was no significant difference in spatial resolution. In clinical use, signal was higher on Siemens system and noise was lower on GE Swiftscan solution. Contrast-to-noise ratios were not significantly different between the two systems. There was a significant image quality improvement with GE SwiftScan in planar images and in whole body scan. No significant difference in image quality was observed on SPECT images.

Conclusion

New GE SwiftScan collimator design improved sensitivity compared to “classical” GE LEHR collimator without compromising resolution. GE SwiftScan solution enhances planar image quality with a better Clarity 2D resolution recovery and noise treatment. In SPECT mode, GE SwiftScan solution improves volumetric sensitivity without significant impact on image quality, and could lead to time or dose reduction.

Klíčová slova:

Research and analysis methods – Imaging techniques – Bone imaging – Biology and life sciences – Neuroscience – Neuroimaging – Anatomy – Biological tissue – Connective tissue – Musculoskeletal system – Skeletal joints – Medicine and health sciences – Diagnostic medicine – Diagnostic radiology – Tomography – Single photon emission computed tomography – Radiology and imaging – Soft tissues – Bone – Health care – Engineering and technology – Signal processing – Noise reduction – Signal to noise ratio


Zdroje

1. Moore SC, Kouris K, Cullum I. Collimator design for single photon emission tomography. Eur J Nucl Med. 1992;19(2):138–50. Epub 1992/01/01. doi: 10.1007/bf00184130 1563442.

2. Nakajima K, Okuda K, Momose M, Matsuo S, Kondo C, Sarai M, et al. IQ.SPECT technology and its clinical applications using multicenter normal databases. Ann Nucl Med. 2017;31(9):649–59. Epub 2017/09/25. doi: 10.1007/s12149-017-1210-3 28940141; PubMed Central PMCID: PMC5651712.

3. Kumita S, Tanaka K, Cho K, Sato N, Nakajo H, Toba M, et al. Assessment of left ventricular function using solid-state gamma camera equipped with a highly-sensitive collimator. Ann Nucl Med. 2003;17(6):517–20. Epub 2003/10/25. 14575391.

4. Le Rouzic G, Biggs E, Charpentier M. Evaluation and comparison of a new low energy high resolution collimator. Physica Medica. 2018;56:34. doi: 10.1016/j.ejmp.2018.11.008 30527087

5. NEMA. NU 1–2000 Performance measurements of scintillation cameras. The Association of Electrical Equipment and Medical Imaging Manufacturers (NEMA). 2000.

6. NEMA. NU 2–2012 Performance measurements of positron emission tomographs. The Association of Electrical Equipment and Medical Imaging Manufacturers (NEMA). 2012.

7. Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics. 1977;33(1):159–74. Epub 1977/03/01. 843571.

8. Sarikaya I, Sarikaya A, Holder LE. The role of single photon emission computed tomography in bone imaging. Semin Nucl Med. 2001;31(1):3–16. Epub 2001/02/24. 11200204.

9. Onishi H, Motomura N, Fujino K, Natsume T, Haramoto Y. Quantitative performance of advanced resolution recovery strategies on SPECT images: evaluation with use of digital phantom models. Radiol Phys Technol. 2013;6(1):42–53. Epub 2012/07/14. doi: 10.1007/s12194-012-0168-z 22791082.

10. Seret A, Forthomme J. Comparison of different types of commercial filtered backprojection and ordered-subset expectation maximization SPECT reconstruction software. J Nucl Med Technol. 2009;37(3):179–87. Epub 2009/09/04. doi: 10.2967/jnmt.108.061275 19726808.


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