TY - JOUR
T1 - Accuracy of the heidelberg spectralis in the alignment between near-infrared image and tomographic scan in a model eye
T2 - A multicenter study
AU - Barteselli, Giulio
AU - Bartsch, Dirk Uwe
AU - Viola, Francesco
AU - Mojana, Francesca
AU - Pellegrini, Marco
AU - Hartmann, Kathrin I.
AU - Benatti, Eleonora
AU - Leicht, Simon
AU - Ratiglia, Roberto
AU - Staurenghi, Giovanni
AU - Weinreb, Robert N.
AU - Freeman, William R.
PY - 2013/9
Y1 - 2013/9
N2 - Purpose: To evaluate temporal changes and predictors of accuracy in the alignment between simultaneous near-infrared image and optical coherence tomography (OCT) scan on the Heidelberg Spectralis using a model eye. Design: Laboratory investigation. Methods: After calibrating the device, 6 sites performed weekly testing of the alignment for 12 weeks using a model eye. The maximum error was compared with multiple variables to evaluate predictors of inaccurate alignment. Variables included the number of weekly scanned patients, total number of OCT scans and B-scans performed, room temperature and its variation, and working time of the scanning laser. A 4-week extension study was subsequently performed to analyze short-term changes in the alignment. Results: The average maximum error in the alignment was 15 ± 6 μm; the greatest error was 35 μm. The error increased significantly at week 1 (P =.01), specifically after the second imaging study (P
AB - Purpose: To evaluate temporal changes and predictors of accuracy in the alignment between simultaneous near-infrared image and optical coherence tomography (OCT) scan on the Heidelberg Spectralis using a model eye. Design: Laboratory investigation. Methods: After calibrating the device, 6 sites performed weekly testing of the alignment for 12 weeks using a model eye. The maximum error was compared with multiple variables to evaluate predictors of inaccurate alignment. Variables included the number of weekly scanned patients, total number of OCT scans and B-scans performed, room temperature and its variation, and working time of the scanning laser. A 4-week extension study was subsequently performed to analyze short-term changes in the alignment. Results: The average maximum error in the alignment was 15 ± 6 μm; the greatest error was 35 μm. The error increased significantly at week 1 (P =.01), specifically after the second imaging study (P
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U2 - 10.1016/j.ajo.2013.04.030
DO - 10.1016/j.ajo.2013.04.030
M3 - Article
C2 - 23769196
AN - SCOPUS:84882289100
VL - 156
SP - 588
EP - 592
JO - American Journal of Ophthalmology
JF - American Journal of Ophthalmology
SN - 0002-9394
IS - 3
ER -