D de Sá Cavalcante1, M G da Silva Castro2, A R P Quidute3, M R A Martins3, A M P L Cid1, P G de Barros Silva1, J Cadwell Williams4, F S Neves5, T R Ribeiro1, F W G Costa6. 1. Department of Clinical Dentistry, Postgraduate Program in Dentistry, Federal University of Ceará, Alexandre Baraúna St 949, Rodolfo Teofilo, Fortaleza, Ceará, 60430-160, Brazil. 2. Realistic Simulation Center, Univeristy Center UNICHRISTUS, R. João Adolfo Gurgel St 133, Cocó, Fortaleza, Ceará, 60190-060, Brazil. 3. Division of Endocrinology and Diabetology, Walter Cantídio University Hospital, Alexandre Baraúna St 949, Rodolfo Teofilo, Fortaleza, Ceará, 60430-160, Brazil. 4. Department of Anatomy and Cell Biology, Indiana School of Medicine, 635 Barnhill Dr, Indianapolis, IN, 46202, USA. 5. Division of Oral Radiology, School of Dentistry, Federal University of Bahia, Araújo Pinho ave 62, Canela, Salvador, Bahia, 40110-040, Brazil. 6. Department of Clinical Dentistry, Postgraduate Program in Dentistry, Federal University of Ceará, Alexandre Baraúna St 949, Rodolfo Teofilo, Fortaleza, Ceará, 60430-160, Brazil. fwildson@yahoo.com.br.
Abstract
Sheehan's syndrome (SHS) is a rare condition related to the risk of osteoporosis and evaluation of bone texture imaging features on panoramic radiographs would be suitable for this condition, which was the aim of the present study. Fractal dimension, lacunarity, and trabecular morphologic aspects were significantly altered in these patients. INTRODUCTION: SHS is an important public health problem particularly in developing countries. It is characterized as postpartum hypopituitarism secondary to obstetric complications-related ischemic pituitary necrosis that shows significant systemic metabolic repercussions. Thus, this study aimed to evaluate bone texture parameters in digital panoramic radiographs of patients with SHS. METHODS: A case-control study was conducted with 30 SHS patients from an Endocrinology and Diabetology Service of reference in Brazil, and 30 age- and sex-matched healthy controls. A custom computer program measured fractal dimension, lacunarity, and some morphologic features in the following mandibular regions of interest (50 × 50 pixels): below the mental foramen (F1), between the first and second molars (M1), and at the center of the mandibular ramus (R1). RESULTS: The fractal analysis showed a statistically significant difference between the studied groups in all regions of interest. The fractal dimension in F1 (p = 0.016), M1 (p = 0.043), and R1 (p = 0.028) was significantly lower in SHS group, as well as lacunarity in R1 (p = 0.008). Additionally, several morphologic features were statistically significant in the SHS group (p < 0.05). CONCLUSION: Therefore, individuals with SHS showed altered imaging texture parameters on panoramic radiographs, which reflect a smaller spatial organization of the bone trabeculae and, possibly, a state of reduced mineral bone density.
Sheehan's syndrome (SHS) is a rare condition related to the risk of osteoporosis and evaluation of bone texture imaging features on panoramic radiographs would be suitable for this condition, which was the aim of the present study. Fractal dimension, lacunarity, and trabecular morphologic aspects were significantly altered in these patients. INTRODUCTION: SHS is an important public health problem particularly in developing countries. It is characterized as postpartum hypopituitarism secondary to obstetric complications-related ischemic pituitary necrosis that shows significant systemic metabolic repercussions. Thus, this study aimed to evaluate bone texture parameters in digital panoramic radiographs of patients with SHS. METHODS: A case-control study was conducted with 30 SHS patients from an Endocrinology and Diabetology Service of reference in Brazil, and 30 age- and sex-matched healthy controls. A custom computer program measured fractal dimension, lacunarity, and some morphologic features in the following mandibular regions of interest (50 × 50 pixels): below the mental foramen (F1), between the first and second molars (M1), and at the center of the mandibular ramus (R1). RESULTS: The fractal analysis showed a statistically significant difference between the studied groups in all regions of interest. The fractal dimension in F1 (p = 0.016), M1 (p = 0.043), and R1 (p = 0.028) was significantly lower in SHS group, as well as lacunarity in R1 (p = 0.008). Additionally, several morphologic features were statistically significant in the SHS group (p < 0.05). CONCLUSION: Therefore, individuals with SHS showed altered imaging texture parameters on panoramic radiographs, which reflect a smaller spatial organization of the bone trabeculae and, possibly, a state of reduced mineral bone density.
Entities:
Keywords:
Mineral bone density; Panoramic radiograph; Sheehan’s syndrome; Texture imaging parameters
Authors: Aliza Imam; Jameel Iqbal; Harry C Blair; Terry F Davies; Christopher L-H Huang; Alberta Zallone; Mone Zaidi; Li Sun Journal: Curr Opin Endocrinol Diabetes Obes Date: 2009-12 Impact factor: 3.243
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