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Clinical Densitometry

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https://www.readbyqxmd.com/read/29203343/wide-variation-in-organisation-and-clinical-practice-of-paediatric-intestinal-failure-teams-an-international-survey
#1
Esther Neelis, Barbara de Koning, Myriam van Winckel, Merit Tabbers, Susan Hill, Jessie Hulst
BACKGROUND & AIMS: We aimed to assess the current organisation and clinical practice of teams treating children with intestinal failure (IF) across Europe and compare the results with the current guideline. METHODS: A two-part online survey was sent to all the major European specialist IF services. The first part concerned general information about the team and patients monitored. The second part concerned important care topics such as vascular access and monitoring of complications...
November 22, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29198430/correlation-between-mandibular-bone-density-and-skeletal-bone-density-in-a-catalonian-postmenopausal-population
#2
Albert Estrugo-Devesa, Juan Segura-Egea, Laia García-Vicente, Mayra Schemel-Suárez, Ándres Blanco-Carrrión, Enric Jané-Salas, José López-López
OBJECTIVES: The aim of this study was to determine if the mandible (MD) experiences reductions in bone mineral density (BMD) similar to the lumbar spine (LS) and femoral neck (FN) in a postmenopausal population. STUDY DESIGN: A total of 137 postmenopausal women underwent 3 types of densitometric examinations: LS, FN, and MD as measured in 3 regions (MD-R1, MD-R2, and MD-R3), as well as the entire mandible (MD-Net) using a dual photon bone X-ray densitometer. Densitometry of the LS and FN were performed according to the protocol of the International Society for Clinical Densitometry...
November 29, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29173816/the-prediction-of-body-composition-in-african-americans-from-spine-and-hip-dual-energy-absorptiometry
#3
Rajesh K Jain, Tamara Vokes
Body composition, the makeup of the body's fat and lean tissue, is associated with important health outcomes and provides useful clinical information. Although body composition can be measured with total body dual-energy X-ray absorptiometry (DXA), this is rarely performed. As an alternative to total body DXA measurement, methods for estimation of body composition have been developed. These methods use soft tissue measures from spine and hip DXA to predict body composition and include prediction equations previously published by Leslie and proprietary equations within General Electric densitometry software...
October 25, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29152655/tgf%C3%A2-%C3%AE-1-expression-in-adults-with-non%C3%A2-traumatic-osteonecrosis-of-the-femoral-head
#4
Jun Tao, Bin Dong, Li-Xin Yang, Ke-Qing Xu, Shuai Ma, Jun Lu
Non-traumatic osteonecrosis of the femoral head (NONFH) is a common clinical osteoarthropathy. The present study aimed to investigate the association between transforming growth factor β1 (TGF‑β1) and NONFH. Femoral head specimens were collected from patients with NONFH. Patients with traumatic osteonecrosis served as the control. Hematoxylin and eosin (H&E) staining was used to visualize the bone tissue architecture. Immunohistochemistry and densitometry were performed to quantify TGF‑β1 expression in tissues...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29150162/distribution-of-clinical-risk-factors-for-fracture-in-a-brussels-cohort-of-postmenopausal-women-the-frisbee-study-and-comparison-with-other-major-cohort-studies
#5
S I Cappelle, I Ramon, C Dekelver, S Rozenberg, F Baleanu, R Karmali, M Rubinstein, M Tondeur, M Moreau, M Paesmans, P Bergmann, J-J Body
OBJECTIVES: The estimation of fracture risk using clinical risk factors (CRFs) is of primary concern in osteoporosis management, but only some risk factors have been thoroughly evaluated and incorporated in predictive models. We have launched a large prospective study, the 'Fracture Risk Brussels Epidemiological Enquiry' (FRISBEE), to develop a new predictive model for osteoporotic fractures. The aims of this report are to describe the methodology of the FRISBEE study and to compare the distribution of CRFs in our cohort with those reported in other large studies...
December 2017: Maturitas
https://www.readbyqxmd.com/read/29145265/corneal-clarity-measurements-in-healthy-volunteers-across-different-age-groups-observational-study
#6
Khaled Alzahrani, Fiona Carley, Arun Brahma, Debbie Morley, M Chantal Hillarby
The aim of this study was to standardize and investigate the changes in corneal clarity with age. Densitometry software for the Oculus Pentacam was used to examine corneal clarity at different age groups.A total of 192 eyes from 97 healthy participants were included in this cohort comparative nonrandomized, cross-sectional study. An Oculus Pentcam was used to image the cornea of healthy participants grouped by age (between 10 and 70 years old). Data from the densitometry output have been used to determine clarity in concentric zones and different depths of the cornea...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29143131/vertebral-fractures-and-their-association-with-health-related-quality-of-life-back-pain-and-physical-function-in-older-women
#7
Lisa Johansson, Daniel Sundh, Martin Nilsson, Dan Mellström, Mattias Lorentzon
Studies investigating prevalent vertebral fracture (VF) diagnosed using densitometry-based VF assessment (VFA) and associations with physical function, assessed by performance-based measures, are lacking. In this population-based study of 1027 older women, we found that prevalent VF, identified by VFA, was associated with inferior physical health, back pain and inferior physical function. PURPOSE: Several studies have investigated the associations between health-related quality of life (HRQL) and back pain with prevalent VF, detected by spine radiographs, but just a few have been population-based and have used vertebral fracture assessment (VFA) for diagnosing VF...
November 15, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/29049519/association-of-bone-mineral-density-with-the-risk-of-intracranial-aneurysm
#8
Yong-Won Shin, Kyung-Il Park, Jangsup Moon, Soon-Tae Lee, Kon Chu, Sang Kun Lee, Jae-Kyu Roh, Keun-Hwa Jung
Importance: Disruption of extracellular matrix integrity is critically involved in both intracranial aneurysm and bone fragility. Furthermore, both intracranial aneurysm and osteoporosis have a female predominance, and sex hormones are considered to affect this discrepancy. Objective: To evaluate the association between bone mineral density and intracranial aneurysm. Design, Setting, and Participants: A cross-sectional study conducted with 14 328 patients who underwent brain magnetic resonance angiography and bone mineral densitometry as a part of a health examination at a specialized center for comprehensive health examination in Seoul, the largest metropolitan area in the Republic of Korea, between December 2004 and November 2015...
October 16, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29038394/factors-associated-with-lumbar-and-femoral-bone-mineral-density-in-kidney-transplants-candidates
#9
Mohammad Aghighi, Mitra Mahdavi Mazdeh, Mohsen Nafar, Vahid Rakhshan
INTRODUCTION: Data on risk factors associated with low bone mineral density are limited in patients with end-stage renal disease. This study evaluated the factors deemed associated with lumbar and femoral Z and T scores. MATERIALS AND METHODS: Clinical and demographic data of 98 patients waiting for kidney transplantation were collected, as well as lumbar and femoral bone densitometries, before transplantation. Osteoporosis and osteopenia and factors associated with bone mineral density were assessed...
October 2017: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/29018567/do-we-need-bone-mineral-density-to-estimate-osteoporotic-fracture-risk-a-10-year-prospective-multicentre-validation-study
#10
Andréa Marques, Raquel Lucas, Eugénia Simões, Suzanne M M Verstappen, Johannes W G Jacobs, Jose A P da Silva
OBJECTIVE: Evaluate the performance of FRAX®, with and without bone mineral densitometry (BMD), in predicting the occurrence of fragility fractures over 10 years. METHODS: Participants aged ≥40 years at baseline, with a complete set of data and a minimum of 8.5 years of follow-up were identified from three cohorts (n=2626). Ten-year fracture risk at baseline were estimated with FRAX® and assessed by comparison with observed fractures and receiver operating characteristic analysis...
2017: RMD Open
https://www.readbyqxmd.com/read/28977305/assessment-of-the-late-effects-on-bones-and-on-body-composition-of-children-and-adolescents-treated-for-acute-lymphocytic-leukemia-according-to-brazilian-protocols
#11
Poliana Cristina Carmona Molinari, Henrique Manoel Lederman, Maria Lucia de Martino Lee, Eliana Maria Monteiro Caran
OBJECTIVE: To evaluate the impact of therapy on bone mineral density (BMD) and body composition in survivors of acute lymphoblastic leukemia (ALL) treated in accordance with Brazilian protocols by the Brazilian Cooperative Group of Treatment of Lymphoblastic Leukemia in Childhood (GBTLI) LLA-93 and LLA-99. METHODS: A cross-sectional study with 101 patients was performed. BMD and body composition were evaluated using bone densitometry and were interpreted according to the age group and the reference population...
January 2017: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
https://www.readbyqxmd.com/read/28955207/hydrogen-inhalation-protects-against-ototoxicity-induced-by-intravenous-cisplatin-in-the-guinea-pig
#12
Anette E Fransson, Marta Kisiel, Kristian Pirttilä, Curt Pettersson, Pernilla Videhult Pierre, Göran F E Laurell
Introduction: Permanent hearing loss and tinnitus as side-effects from treatment with the anticancer drug cisplatin is a clinical problem. Ototoxicity may be reduced by co-administration of an otoprotective agent, but the results in humans have so far been modest. Aim: The present preclinical in vivo study aimed to explore the protective efficacy of hydrogen (H2) inhalation on ototoxicity induced by intravenous cisplatin. Materials and Methods: Albino guinea pigs were divided into four groups. The Cispt (n = 11) and Cispt+H2 (n = 11) groups were given intravenous cisplatin (8 mg/kg b...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28937143/crab-claw-pattern-on-corneal-topography-pellucid-marginal-degeneration-or-inferior-keratoconus
#13
M Koc, K Tekin, M Inanc, P Kosekahya, P Yilmazbas
PurposeTo evaluate the topographic, tomographic, and densitometric properties of patients with pellucid marginal degeneration (PMD) and inferior keratoconus.Patients and methodsRetrospective, comparative case series. Forty-seven eyes of 32 patients with crab claw patterns were identified from 2751 patients with corneal ectasia. They were divided into two groups, inferior keratoconus and PMD, based on clinical findings. The topographic, tomographic, and densitometric measurements were analyzed.ResultsPMD was detected in 11 eyes of eight patients (mean age 50...
September 22, 2017: Eye
https://www.readbyqxmd.com/read/28934883/contrast-enhanced-computed-tomography-enables-quantitative-evaluation-of-tissue-properties-at-intrajoint-regions-in-cadaveric-knee-cartilage
#14
Rachel C Stewart, Juuso T J Honkanen, Harri T Kokkonen, Virpi Tiitu, Simo Saarakkala, Antti Joukainen, Brian D Snyder, Jukka S Jurvelin, Mark W Grinstaff, Juha Töyräs
Objective The aim of this study was to investigate whether the concentration of the anionic contrast agent ioxaglate, as quantitated by contrast-enhanced computed tomography (CECT) using a clinical cone-beam CT (CBCT) instrument, reflects biochemical, histological, and biomechanical characteristics of articular cartilage imaged in an ex vivo, intact human knee joint. Design An osteoarthritic human cadaveric knee joint (91 years old) was injected with ioxaglate (36 mg I/mL) and imaged using CBCT over 61 hours of ioxaglate diffusion into cartilage...
October 2017: Cartilage
https://www.readbyqxmd.com/read/28932558/results-of-quantitative-chest-ct-in-chronic-pulmonary-graft-vs-host-disease-cgvhd-3-years-after-allogeneic-stem-cell-transplantation
#15
Christopher Kloth, Wolfgang M Thaiss, Jürgen Hetzel, Georg Bier, Stefan Wirths, Konstantin Nikolaou, Marius Horger
BACKGROUND: To quantify lung parenchymal changes in symptomatic patients with chronic pulmonary graft-versus-host disease 3 years after allogeneic stem cell transplantation (allo-SCT) by means of CT-densitometry (CTD) and to compare results with those of established pulmonary function tests (PFT). METHODS: The study group consisted of 26 patients with pulmonary cGvHD (19 males, 7 females; mean age, 49.29±15.89; range, 19-72 years). The diagnosis was based on clinical symptoms, PFT and chest-CT findings...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28884215/effect-of-smoking-cessation-on-quantitative-computed-tomography-in-smokers-at-risk-in-a-lung-cancer-screening-population
#16
Bertram J Jobst, Oliver Weinheimer, Mila Trauth, Nikolaus Becker, Erna Motsch, Marie-Luise Groß, Jan Tremper, Stefan Delorme, Anke Eigentopf, Monika Eichinger, Hans-Ulrich Kauczor, Mark O Wielpütz
OBJECTIVE: To longitudinally evaluate effects of smoking cessation on quantitative CT in a lung cancer screening cohort of heavy smokers over 4 years. METHODS: After 4 years, low-dose chest CT was available for 314 long-term ex-smokers (ES), 404 continuous smokers (CS) and 39 recent quitters (RQ) who quitted smoking within 2 years after baseline CT. CT acquired at baseline and after 3 and 4 years was subjected to well-evaluated densitometry software, computing mean lung density (MLD) and 15th percentile of the lung density histogram (15TH)...
September 7, 2017: European Radiology
https://www.readbyqxmd.com/read/28860112/risk-factors-for-falls-in-older-patients-with-cancer
#17
Xiaotao Zhang, Ming Sun, Suyu Liu, Cheuk Hong Leung, Linda Pang, Uday R Popat, Richard Champlin, Holly M Holmes, Vicente Valero, Colin P Dinney, Debu Tripathy, Beatrice J Edwards
OBJECTIVES: A rising number of patients with cancer are older adults (65 years of age and older), and this proportion will increase to 70% by the year 2020. Falls are a common condition in older adults. We sought to assess the prevalence and risk factors for falls in older patients with cancer. METHODS: This is a single-site, retrospective cohort study. Patients who were receiving cancer care underwent a comprehensive geriatric assessments, including cognitive, functional, nutritional, physical, falls in the prior 6 months and comorbidity assessment...
August 31, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28835759/associated-factors-of-bone-mineral-density-and-osteoporosis-in-elderly-males
#18
Behzad Heidari, Abdollah Muhammadi, Yahya Javadian, Ali Bijani, Reza Hosseini, Mansour Babaei
BACKGROUND: Low bone mineral density and osteoporosis is prevalent in elderly subjects. This study aimed to determine the associated factors of bone mineral density and osteoporosis in elderly males. METHODS: All participants of the Amirkola health and ageing project cohort aged 60 years and older entered the study. Bone mineral density at femoral neck and lumbar spine was assessed by the dual energy X-ray absorptiometry (DXA) method. Osteoporosis was diagnosed by the international society for clinical densitometry criteria and the association of bone mineral density and osteoporosis with several clinical, demographic and biochemical parameters...
January 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28817393/increased-expiratory-computed-tomography-density-reveals-possible-abnormalities-in-radiologically-preserved-lung-parenchyma-in-idiopathic-pulmonary-fibrosis
#19
Valentina Petroulia, Manuela Funke, Pascal Zumstein, Sabina Berezowska, Lukas Ebner, Thomas Geiser, Nenad Torbica, Johannes Heverhagen, Alexander Poellinger
OBJECTIVES: Idiopathic pulmonary fibrosis (IPF) is a progressive lethal chronic lung disease with unclear pathogenesis. Radiological hallmark is the pattern of usual interstitial pneumonia accentuated in peripheral and basal areas with otherwise preserved lung structure. One hypothesis is that alveolar collapse and consequent induration lead to fibrotic transformation of lung tissue. The aim of the study was to investigate normal-appearing tissue during expiration for signs of collapsibility and differences from other diseases or controls...
August 16, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28802981/errors-in-patient-positioning-for-bone-mineral-density-assessment-by-dual-x-ray-absorptiometry-effect-of-technologist-retraining
#20
Sasivimol Promma, Chanika Sritara, Saowanee Wipuchwongsakorn, Krisanat Chuamsaamarkkee, Chirawat Utamakul, Wichana Chamroonrat, Arpakorn Kositwattanarerk, Yoch Anongpornjossakul, Kanungnij Thamnirat, Boonsong Ongphiphadhanakul
Improper positioning is one of the factors that can lead to incorrect bone mineral density (BMD) results. This study aimed to assess the frequencies of erroneous positioning during three periods: before retraining of the technologists (BR), after retraining (AR), and at the current timepoint 8 years after retraining (C). The BMD images of the first 150 consecutive patients who underwent DXA of the lumbar spine and hip during each of the three periods were retrospectively reviewed. Patients were excluded if they had severe scoliosis, rendering proper positioning impossible...
August 9, 2017: Journal of Clinical Densitometry
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