Repeatability of Layered Corneal Pachymetry With the Artemis Very High-frequency Digital Ultrasound Arc-Scanner
Identifieur interne : 004091 ( Main/Exploration ); précédent : 004090; suivant : 004092Repeatability of Layered Corneal Pachymetry With the Artemis Very High-frequency Digital Ultrasound Arc-Scanner
Auteurs : Dan Z. Reinstein ; Timothy J. Archer ; Marine Gobbe ; Ronald H. Silverman ; D. Jackson ColemanSource :
- Journal of refractive surgery (Thorofare, N.J. : 1995) [ 1081-597X ] ; 2009.
Abstract
To assess the three-dimensional repeatability of thickness measurements for epithelium, stroma, cornea, flap, and residual stromal bed using the Artemis very high-frequency (VHF) digital ultrasound arc-scanner (ArcScan Inc).
Five consecutive measurements were obtained for 10 eyes of 10 patients 1 year after LASIK using the Artemis VHF digital ultrasound arc-scanner across the central 10-mm diameter of the cornea. Repeatability analysis was performed for thickness measurements for each corneal layer—epithelium, stroma, cornea, flap, and residual stromal bed. The standard deviation of repeated measurements (point-repeatability) was calculated for each measurement location in 0.1-mm steps for the 10 × 10-mm matrix. The pooled standard deviation of the point-repeatability for each measurement location within the central 1-, 2-, and 3-mm radius was calculated (region-repeatability). The corneal thickness of the baseline scan set was compared to that of subsequent scan sets within the same session and plotted over time to assess any possible hydration effects of the immersion technique.
The repeatability at the corneal vertex was 0.58
Layered pachymetry of the epithelium, stroma, cornea, flap, and residual stromal bed showed high repeatability with the Artemis VHF digital ultrasound arc-scanner. The high repeatability validates the use of the Artemis for in vivo layered pachymetry.
Url:
DOI: 10.3928/1081597X-20091105-01
PubMed: 19928698
PubMed Central: 4464782
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Pmc, to step Corpus: 001B22
- to stream Pmc, to step Curation: 001B22
- to stream Pmc, to step Checkpoint: 002063
- to stream Ncbi, to step Merge: 001331
- to stream Ncbi, to step Curation: 001331
- to stream Ncbi, to step Checkpoint: 001331
- to stream Main, to step Merge: 004161
- to stream Main, to step Curation: 004091
Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Repeatability of Layered Corneal Pachymetry With the Artemis Very High-frequency Digital Ultrasound Arc-Scanner</title><author><name sortKey="Reinstein, Dan Z" sort="Reinstein, Dan Z" uniqKey="Reinstein D" first="Dan Z." last="Reinstein">Dan Z. Reinstein</name></author><author><name sortKey="Archer, Timothy J" sort="Archer, Timothy J" uniqKey="Archer T" first="Timothy J." last="Archer">Timothy J. Archer</name></author><author><name sortKey="Gobbe, Marine" sort="Gobbe, Marine" uniqKey="Gobbe M" first="Marine" last="Gobbe">Marine Gobbe</name></author><author><name sortKey="Silverman, Ronald H" sort="Silverman, Ronald H" uniqKey="Silverman R" first="Ronald H." last="Silverman">Ronald H. Silverman</name></author><author><name sortKey="Coleman, D Jackson" sort="Coleman, D Jackson" uniqKey="Coleman D" first="D. Jackson" last="Coleman">D. Jackson Coleman</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">19928698</idno><idno type="pmc">4464782</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4464782</idno><idno type="RBID">PMC:4464782</idno><idno type="doi">10.3928/1081597X-20091105-01</idno><date when="2009">2009</date><idno type="wicri:Area/Pmc/Corpus">001B22</idno><idno type="wicri:Area/Pmc/Curation">001B22</idno><idno type="wicri:Area/Pmc/Checkpoint">002063</idno><idno type="wicri:Area/Ncbi/Merge">001331</idno><idno type="wicri:Area/Ncbi/Curation">001331</idno><idno type="wicri:Area/Ncbi/Checkpoint">001331</idno><idno type="wicri:doubleKey">1081-597X:2009:Reinstein D:repeatability:of:layered</idno><idno type="wicri:Area/Main/Merge">004161</idno><idno type="wicri:Area/Main/Curation">004091</idno><idno type="wicri:Area/Main/Exploration">004091</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Repeatability of Layered Corneal Pachymetry With the Artemis Very High-frequency Digital Ultrasound Arc-Scanner</title><author><name sortKey="Reinstein, Dan Z" sort="Reinstein, Dan Z" uniqKey="Reinstein D" first="Dan Z." last="Reinstein">Dan Z. Reinstein</name></author><author><name sortKey="Archer, Timothy J" sort="Archer, Timothy J" uniqKey="Archer T" first="Timothy J." last="Archer">Timothy J. Archer</name></author><author><name sortKey="Gobbe, Marine" sort="Gobbe, Marine" uniqKey="Gobbe M" first="Marine" last="Gobbe">Marine Gobbe</name></author><author><name sortKey="Silverman, Ronald H" sort="Silverman, Ronald H" uniqKey="Silverman R" first="Ronald H." last="Silverman">Ronald H. Silverman</name></author><author><name sortKey="Coleman, D Jackson" sort="Coleman, D Jackson" uniqKey="Coleman D" first="D. Jackson" last="Coleman">D. Jackson Coleman</name></author></analytic><series><title level="j">Journal of refractive surgery (Thorofare, N.J. : 1995)</title><idno type="ISSN">1081-597X</idno><imprint><date when="2009">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec id="S1"><title>Purpose</title><p id="P1">To assess the three-dimensional repeatability of thickness measurements for epithelium, stroma, cornea, flap, and residual stromal bed using the Artemis very high-frequency (VHF) digital ultrasound arc-scanner (ArcScan Inc).</p></sec><sec id="S2"><title>Methods</title><p id="P2">Five consecutive measurements were obtained for 10 eyes of 10 patients 1 year after LASIK using the Artemis VHF digital ultrasound arc-scanner across the central 10-mm diameter of the cornea. Repeatability analysis was performed for thickness measurements for each corneal layer—epithelium, stroma, cornea, flap, and residual stromal bed. The standard deviation of repeated measurements (point-repeatability) was calculated for each measurement location in 0.1-mm steps for the 10 × 10-mm matrix. The pooled standard deviation of the point-repeatability for each measurement location within the central 1-, 2-, and 3-mm radius was calculated (region-repeatability). The corneal thickness of the baseline scan set was compared to that of subsequent scan sets within the same session and plotted over time to assess any possible hydration effects of the immersion technique.</p></sec><sec id="S3"><title>Results</title><p id="P3">The repeatability at the corneal vertex was 0.58 <italic>μ</italic>m for epithelium, 1.78 <italic>μ</italic>m for stroma, 1.68 <italic>μ</italic>m for cornea, 1.68 <italic>μ</italic>m for flap, and 2.27 <italic>μ</italic>m for residual stromal bed. The region-repeatability within the central 1-mm radius was 1.01 <italic>μ</italic>m for epithelium, 3.44 <italic>μ</italic>m for stroma, 3.35 <italic>μ</italic>m for cornea, 2.81 <italic>μ</italic>m for flap, and 3.97 <italic>μ</italic>m for residual stromal bed. The mean difference in corneal thickness from the baseline value was within 1.25 <italic>μ</italic>m for each of the subsequent four scan sets over a 5-minute immersion period.</p></sec><sec id="S4"><title>Conclusions</title><p id="P4">Layered pachymetry of the epithelium, stroma, cornea, flap, and residual stromal bed showed high repeatability with the Artemis VHF digital ultrasound arc-scanner. The high repeatability validates the use of the Artemis for in vivo layered pachymetry.</p></sec></div></front></TEI><affiliations><list></list><tree><noCountry><name sortKey="Archer, Timothy J" sort="Archer, Timothy J" uniqKey="Archer T" first="Timothy J." last="Archer">Timothy J. Archer</name><name sortKey="Coleman, D Jackson" sort="Coleman, D Jackson" uniqKey="Coleman D" first="D. Jackson" last="Coleman">D. Jackson Coleman</name><name sortKey="Gobbe, Marine" sort="Gobbe, Marine" uniqKey="Gobbe M" first="Marine" last="Gobbe">Marine Gobbe</name><name sortKey="Reinstein, Dan Z" sort="Reinstein, Dan Z" uniqKey="Reinstein D" first="Dan Z." last="Reinstein">Dan Z. Reinstein</name><name sortKey="Silverman, Ronald H" sort="Silverman, Ronald H" uniqKey="Silverman R" first="Ronald H." last="Silverman">Ronald H. Silverman</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Ticri/CIDE/explor/HapticV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 004091 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 004091 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Ticri/CIDE
|area= HapticV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= PMC:4464782
|texte= Repeatability of Layered Corneal Pachymetry With the Artemis Very High-frequency Digital Ultrasound Arc-Scanner
}}
Pour générer des pages wiki
HfdIndexSelect -h $EXPLOR_AREA/Data/Main/Exploration/RBID.i -Sk "pubmed:19928698" \
| HfdSelect -Kh $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd \
| NlmPubMed2Wicri -a HapticV1
| This area was generated with Dilib version V0.6.23. |  |