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Verifying three-dimensional skull model reconstruction using cranial index of symmetry

, : Verifying three-dimensional skull model reconstruction using cranial index of symmetry. Plos One 8(10): E74267-E74267

Difficulty exists in scalp adaptation for cranioplasty with customized computer-assisted design/manufacturing (CAD/CAM) implant in situations of excessive wound tension and sub-cranioplasty dead space. To solve this clinical problem, the CAD/CAM technique should include algorithms to reconstruct a depressed contour to cover the skull defect. Satisfactory CAM-derived alloplastic implants are based on highly accurate three-dimensional (3-D) CAD modeling. Thus, it is quite important to establish a symmetrically regular CAD/CAM reconstruction prior to depressing the contour. The purpose of this study is to verify the aesthetic outcomes of CAD models with regular contours using cranial index of symmetry (CIS). From January 2011 to June 2012, decompressive craniectomy (DC) was performed for 15 consecutive patients in our institute. 3-D CAD models of skull defects were reconstructed using commercial software. These models were checked in terms of symmetry by CIS scores. CIS scores of CAD reconstructions were 99.24±0.004% (range 98.47-99.84). CIS scores of these CAD models were statistically significantly greater than 95%, identical to 99.5%, but lower than 99.6% (p<0.001, p = 0.064, p = 0.021 respectively, Wilcoxon matched pairs signed rank test). These data evidenced the highly accurate symmetry of these CAD models with regular contours. CIS calculation is beneficial to assess aesthetic outcomes of CAD-reconstructed skulls in terms of cranial symmetry. This enables further accurate CAD models and CAM cranial implants with depressed contours, which are essential in patients with difficult scalp adaptation.


PMID: 24204566

DOI: 10.1371/journal.pone.0074267

Other references

Baczynski, Z.; Majewska, H.; Skulmowska Kryszkowska, D.; Szymanderska, H.; Lachowski, A., 1975: Aetiology and epizootiology of enzootic infections of cattle in large stationary farms. Serological examination of cattle for parainfluenza-3 (PI-3), infectious bovine rhinotracheitis/infectious pustular vulvovaginitis (IBR/IPV), adenovirus 3 and virus diarrhoea-mucosal disease (VDMD) viruses showed that changes in PI-3 antibody leve...

Reddy, Y.R.vindra; Rao, S.T.V.roji; Reddy, P.V.V.S.tyanarayana; Shakila, S.; Veerabrahmaiah, K.; Satishkumar, K., 2004: A study on quality of Emu eggs. Emu birds (Dromiaus novahollandiae), native of Australia belong to ratite family and are recently introduced into our country for commercial exploitation. Information on egg production and egg quality traits in this species is limited. The quality...

Szyluk, K.J.; Jasiński, A.; Mielnik, Mł.; Koczy, B., 2016: Incidence of Posttraumatic Shoulder Dislocation in Poland. NlmCategory="UNASSIGNED">BACKGROUND The incidence of shoulder joint dislocation has been estimated at 11-26 per 100 000 population per year. In our opinion, basic epidemiological data need to be continually updated in studies of large...

Ishihara, A.; Uehara, T.; Kurahashi, K., 1971: Quantitative analysis of plasma pyruvic acid by the enzyme method. Rinsho Byori. Japanese Journal of Clinical Pathology 19: Suppl:392-Suppl:392

Lisowski F.P.; Oxnard C.E., 1975: Further studies of african fossil tali. American Journal of Physical Anthropology 42(2): 315

Hazra, A.; Chanock, S.; Giovannucci, E.; Cox, D.G.; Niu, T.; Fuchs, C.; Willett, W.C.; Hunter, D.J., 2008: Large-scale evaluation of genetic variants in candidate genes for colorectal cancer risk in the Nurses' Health Study and the Health Professionals' Follow-up Study. Advances in genomics offer new strategies for assessing the association of common genetic variations at multiple loci and risk of many diseases, including colorectal cancer. Low-penetrance alleles of genes in many biological pathways, such as DNA...

Anonymous, 1974: A regional profile of Indian agriculture. An integrated picture is presented of the agricultural situation in 21 states of the Indian union and seven Union territories. The profile of agricultural development provides information on area, population, agricultural income, types of crops, l...

Alymkulov, D.A., 1970: Gas exchange and hemodynamic characteristics in hemorrhage during ontogenesis at high altitudes. Sovetskoe Zdravookhranenie Kirgizii 4: 17-20

Sahama T.G.; Hytoenen K., 1957: Unit cell of mosandrite, johnstrupite and rinkite. The results of reexamination of the unit-cell dimensions of mosandrite, johnstrupite, and rinkite are presented, and the analyses published by W. C. Broegger are recalculated according to present-day crystal chemical principles. The three minerals...

Clyman, S.G.; Orr, N.A., 1990: Status report on the NBME's computer-based testing. Academic Medicine 65(4): 235-241