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First Rib (first + rib)

Distribution by Scientific Domains

Life Sciences	37%

Selected Abstracts

Multislice Computed Tomography of the First Rib: A Useful Technique for Bone Age Assessment

JOURNAL OF FORENSIC SCIENCES, Issue 4 2010
Guillaume Moskovitch M.S.
Abstract:, Macroscopic study of the first rib has been described by Kunos et al. as an efficient method of age estimation. We retrospectively reviewed a test sample of 160 first right ribs obtained from multislice computed tomography (MSCT) clinical investigations of living individuals aged 15,30 years old. Based on the descriptions of Kunos et al., we analyzed the morphological appearance of the sternal end of the first rib on two- and three-dimensional MSCT reconstructions and defined changes in appearance in stages (from 2 to 5). We also studied the calcification and ossification of the costal cartilage as an independent feature. By statistical analysis (ANOVA), we determined for each gender the correlation between the estimated stage of the costal face, the appearance of the costal cartilage, and the documented age of the subjects. We demonstrated that MSCT of the first rib appears to be an efficient noninvasive modality for bone age estimation. [source]

Use of the first rib for adult age estimation: a test of one method

INTERNATIONAL JOURNAL OF OSTEOARCHAEOLOGY, Issue 5 2005
H. Kurki
Abstract The human first rib is relatively easy to identify and is often preserved, in comparison with elements such as the fourth rib and pubic symphysis. Therefore it is potentially a valuable skeletal element for estimating age in forensic and archaeological contexts. A method of adult age estimation using the first rib (Kunos et al., 1999) is tested on a sample of known age skeletons from the J.C.B. Grant Collection (n,=,29, mean age,=,55.7 years). The high correlation coefficient (r,=,0.69) and moderate coefficient of determination (r2,=,0.47) demonstrate agreement between the known and estimated ages, suggesting that the first rib demonstates morphological changes with age. The inaccuracy and bias are high (all ages inaccuracy,=,10.4 years, bias,=,4.7 years) but comparable to several other age estimation methods in common use. Although the results are not as good for younger age categories (<,50 years: inaccuracy and bias rank ninth of nine age estimation methods), the inaccuracy and bias for the older age categories are relatively low (60,+ years inaccuracy,=,8.9 years, ranks third out of nine; bias,=,,,5.8 years, ranks first out of nine) compared with other age estimation methods. The first rib method is reasonably precise (93% of individuals fall within the limits of agreement of the mean difference between two trials). The first rib method is therefore a useful addition to the methods available for biological profile reconstructions from skeletal remains, especially if it is suspected that the remains represent an older individual. Copyright © 2005 John Wiley & Sons, Ltd. [source]

Multislice Computed Tomography of the First Rib: A Useful Technique for Bone Age Assessment

A new method for estimating age-at-death from the first rib,

AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 2 2009
Elizabeth A. DiGangi
Abstract A new method for estimating adult age-at-death from the first rib was developed as a modification of the Kunos et al. (Am J Phys Anthropol 110 (1999) 303,323) method. Data were collected on three aspects of the first rib (costal face, rib head, and tubercle facet) for 470 known-age males of Balkan ancestry collected as evidence during investigations conducted by the International Criminal Tribunal for the former Yugoslavia (ICTY). Ages-at-death range from 12 to 90 years (mean of 47.7 years). Several variables were extracted from the original study utilizing all three skeletal aspects of the first rib. This list was modified to 11 variables as preliminary tests on seriations of the samples were undertaken. A cumulative probit model with age measured on a log scale was used to calculate the mean and standard deviation of the ages-of-transition for each component. Multivariate analysis of the three components was also performed. The lowest correlation (r = 0.079, controlling for age) was between the geometric shape of the costal face and the surface texture of the tubercle facet. Assuming a correlation of zero, these two traits were used to calculate the highest posterior density regions for estimating individual ages-at-death. Age-at-death estimates generated from 50 and 95% posterior density regions indicate that this method captures age-related change reaching the ninth decade. The Bayesian statistical approach used here produced a valuable and promising new method for estimating age-at-death. Additional research is necessary to determine if these highest posterior density regions produce results highly correlated with age in other samples and its applicability to females. Am J Phys Anthropol 2009. © 2008 Wiley-Liss, Inc. [source]

The importance of structures adjacent to the first rib

CLINICAL ANATOMY, Issue 4 2006
Matthew J.N. Crocker
No abstract is available for this article. [source]

Life Threatening Hemorrhage From Osteoradionecrosis of the Ribs and Clavicle

THE LARYNGOSCOPE, Issue 9 2007
MRCS, Mohammed Iqbal Syed MD
Osteoradionecrosis (ORN) is a familiar complication of radiotherapy. ORN of the clavicle and ribs is well documented after radiation therapy for breast and pulmonary malignancy. ORN of the clavicle after radiation therapy to the neck is very rare. We report the first case in which both clavicles and first ribs underwent ORN 14 years after neck irradiation and surgery for laryngeal malignancy. The presentation was atypical; erosion of the right internal mammary artery causing life-threatening hemorrhage. Otolaryngologists should be aware that ORN can occur at an unusual site and can have an atypical presentation. [source]