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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 340Influence of Shape of Region of Interest on the...

Influence of Shape of Region of Interest on the Architectural Parameters in Micro CT Image Analysis

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Abstract:

To study whether the architectural parameters are sensitive to the shape of volume of interests in micro-CT scanning, six human C5 body samples were scanned by micro-CT. Cubic and cylindrical volumes of interests were acquired as the length of cubic samples was being changed continually. The nonlinear curve fitting method was employed to explore the correlation between the parameters and the volume of interests. The selected morphological indices showed a significantly variable tendency for the lengths of cubic and cylindrical regions of interests, except the Tb.Th and BS/BV. The Dunnett-t tests were performed to compare the architectural parameters of different region of interests against that of control group. There was no significant difference observed between the architectural parameters from cubic region of interests and that from the cylindrical region of interests.

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Mechanical Properties of Materials and Information Technology

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Periodical:

Advanced Materials Research (Volume 340)

Pages:

241-247

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.340.241

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Online since:

September 2011

Authors:

Ya Bo Yan, Jun Wang, Wei Qi, Yang Zhang, Wei Lei

Keywords:

Architectural Parameter, Cancellous Bone, Micro-Computed Tomography, Volume of Interest

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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477±0. 025.

[17] 500±3. 383.

114±0. 017.

[4] 137±0. 372.

177±0. 026* (2mm)3.

338±0. 025.

[18] 120±2. 712.

113±0. 017.

[3] 060±0. 380.

218±0. 028* (3mm)3.

315±0. 031.

[18] 700±3. 151.

110±0. 016.

[2] 920±0. 277.

235±0. 025* (4mm)3.

305±0. 026.

[18] 780±2. 877.

110±0. 014.

[2] 840±0. 264.

245±0. 024* (5mm)3.

293±0. 017.

[19] 130±2. 746.

108±0. 013.

[2] 770±0. 266.

258±0. 022 (6mm)3.

273±0. 017.

[19] 673±2. 615.

103±0. 010.

[2] 655±0. 264.

275±0. 025 (7mm)3.

255±0. 024.

[19] 965±2. 627.

100±0. 014.

[2] 533±0. 149.

295±0. 017 (8mm)3.

253±0. 022.

[20] 090±2. 704.

100±0. 014.

[2] 508±0. 131.

300±0. 016 (9mm)3.

253±0. 022.

[20] 115±2. 809.

098±0. 013.

[2] 528±0. 144.

300±0. 022 (10mm)3.

258±0. 026.

[19] 950±2. 985.

107±0. 016.

[2] 553±0. 134.

298±0. 021 Total volume^.

254±0. 023.

[20] 06±2. 822.

101±0. 014.

[2] 518±0. 136.

299±0. 019 *P<0. 05 for comparison to the control group Values were calculated using the software of MicroView (Healthcare Explore Locus, GE Medical Systems, Milwaukee, USA). ^Dunnett-t test was used, where the parameters of total volume were from the control group. Table 2. Mean and SD values for the micro-architectural parameters in Cylindrical ROIs BV/TV(1) BS/BV(1/mm) Tb. Th(mm) Tb. N(1) Tb. Sp(mm) (1mm)3.

DOI: 10.7717/peerj.10036/table-4

417±0. 038.

[17] 248±3. 158.

126±0. 018.

[3] 598±0. 254.

162±0. 023* (2mm)3.

318±0. 037.

[17] 489±3. 186.

117±0. 021.

[2] 878±0. 181.

236±0. 022* (3mm)3.

316±0. 029.

[17] 315±3. 066.

115±0. 020.

[2] 734±0. 213.

253±0. 021* (4mm)3.

291±0. 033.

[18] 546±3. 339.

114±0. 015.

[2] 755±0. 191.

278±0. 020 (5mm)3.

276±0. 026.

[18] 69±3. 185.

112±0. 008.

[2] 740±0. 173.

287±0. 019 (6mm)3.

263±0. 027.

[18] 067±2. 218.

111±0. 010.

[2] 673±0. 140.

291±0. 019 (7mm)3.

252±0. 023.

[19] 377±2. 670.

109±0. 016.

[2] 615±0. 160.

293±0. 019 (8mm)3.

249±0. 022.

[19] 503±2. 969.

108±0. 014.

[2] 602±0. 164.

296±0. 018 (9mm)3.

250±0. 020.

[20] 525±2. 428.

108±0. 013.

[2] 520±0. 130.

301±0. 018 (10mm)3.

252±0. 025.

[20] 415±2. 340.

108±0. 013.

[2] 481±0. 112.

303±0. 018 Total volume^.

254±0. 023.

[20] 06±2. 822.

101±0. 014.

[2] 518±0. 136.

299±0. 019 *P<0. 05 for comparison to the control group Values were calculated using the software of MicroView (Healthcare Explore Locus, GE Medical Systems, Milwaukee, USA). ^Dunnett-t test was used, where the parameters of total volume were from the control group. Figure. 1 The different shape of ROIs. Figure. 2 Architectural parameters of different shapes with continous changing lengths.