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https://www.readbyqxmd.com/read/27908076/experimental-observation-of-piezoelectric-effect-in-cancellous-bone-generated-by-ultrasound-irradiation
#1
A Hosokawa
In this study, piezoelectric cells (PE-cells) of cancellous bone were experimentally produced to receive an ultrasound wave. In the PE-cell, a bovine cancellous bone specimen, in which the pore spaces were saturated with air, was electrically shielded to prevent electromagnetic noise. As a result, the piezoelectric signal generated in the cancellous bone specimen by irradiating an ultrasound burst wave at 1.0 MHz could be clearly observed in water. The experimental results showed that the ultrasound sensitivity per unit area of cancellous bone was estimated to be below 1/100 and 1/100 000 of cortical bone and poly(vinylidene fluoride), respectively...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27905911/prevalence-of-lumbar-spondylosis-and-its-association-with-low-back-pain-among-community-dwelling-japanese-women
#2
Ritsu Tsujimoto, Yasuyo Abe, Kazuhiko Arima, Takayuki Nishimura, Masato Tomita, Akihiko Yonekura, Takashi Miyamoto, Shohei Matsubayashi, Natsumi Tanaka, Kiyoshi Aoyagi, Makoto Osaki
BACKGROUND: Lumbar spondylosis is more prevalent among the middle-aged and elderly, but few population-based studies have been conducted, especially in Japan. The purpose of this study was to explore the prevalence of lumbar spondylosis and its associations with low back pain among community-dwelling Japanese women. METHODS: Lateral radiographs of the lumbar spine were obtained from 490 Japanese women ≥ 40 years old, and scored for lumbar spondylosis using the Kellgren-Lawrence (KL) grade at lumbar intervertebral level from L1/2 to L5/S1...
December 1, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27904420/role-of-the-whole-body-vibration-machine-in-the-prevention-and-management-of-osteoporosis-in-old-age-a-systematic-review
#3
REVIEW
Myint Swe, Biju Benjamin, Aye Aye Tun, Sandheep Sugathan
A literature search of related articles was carried out in electronic data sources. Initially, 276 randomised controlled trials related to the title were collected, after which 44 were selected using the keywords. Overlapping articles, articles with a study duration of less than six months, and studies involving young participants were removed from the list. The remaining 20 articles were checked for entitlement using the PEDro scale. A total of nine eligible articles with 1486 participants were analysed. Seven trials used dual-energy x-ray absorptiometry (DXA) to measure bone mineral density (BMD)...
September 2016: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/27901060/body-composition-and-bone-mineral-status-in-patients-with-turner-syndrome
#4
Kun Shi, Li Liu, Yao-Juan He, Duan Li, Lian-Xiong Yuan, Gendie E Lash, Li Li
Turner syndrome (TS) is associated with decreased bone mineral density and increased fracture rate. However, the developmental trajectory of bone density or body composition in patients with TS is still unclear. The present study tested the hypothesis that different karyotypes and/or age contributes to abnormal body composition and decreased bone mineral status parameters in patients with TS. This study included 24 girls with TS, in which 13 girls exhibited X0 karyotype and 11 had mosaicism. Quantitative ultrasound (QUS) assessed the bone mineral status of the calcaneus, including bone mineral density (BMD), amplitude-dependent speed of sound (AD-SOS), broadband ultrasound attenuation (BUA) and InBody 770 assessed body composition...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900244/ultrasound-evaluation-of-intra-osseous-cavity-a-preliminary-study-in-pig-mandibles
#5
Thásia L D Ferreira, Andre Luiz F Costa, Maria José A Tucunduva, Raul R Tucunduva-Neto, Elio H Shinohara, Cláudio F de Freitas
AIMS: To assess the role of ultrasonography as a possible tool for diagnosis of intra-osseous lesions. METHODS: Our sample comprised five macerated pig jaws. The regions of bony crypts of third molars were examined on both sides, totaling 10 examinations. The degrees of difficulty for both ultrasound image visualization and bone translucency were rated by two groups of evaluators (i.e. dental radiologists and physician ultrasonographers). RESULTS: Our results showed that it is possible to detect images of the intra-osseous cavity at a low-degree difficulty by using both radiographic and ultrasonic techniques (46...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27897026/-acute-myocardial-infarction-complicated-pregnancy-of-patient-after-kindey-transplantation-and-knee-osteosarcoma
#6
K Lehnertová, K Huml, R Pilka
OBJECTIVE: Case report describes a patient with acute ST elevation myocardial infarction with Q wave in 26 weeks gestation. DESIGN: Case report. SETTING: Department of Obstetrics and Gynecology, University Hospital, Palacky University, Olomouc. CASE REPORT: Medical history is complicated with a cadaveric transplantation of kindey, osteosarcoma of the left knee with a joint extraction and chemotherapy, serious hypothyreosis after spontaneous discontinuation of medication and missing fetal nasal bone at the ultrasound examination...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27895879/evaluation-of-stress-scores-throughout-radiological-biopsies
#7
Ozlem Turkoglu, Hasan Huseyin Mutlu
BACKGROUND: Ultrasound-guided biopsy procedures are the most prominent methods that increase the trauma, stress and anxiety experienced by the patients. OBJECTIVES: Our goal was to examine the level of stress in patients waiting for radiologic biopsy procedures and determine the stress and anxiety level arising from waiting for a biopsy procedure. PATIENTS AND METHODS: This prospective study included 35 female and 65 male patients who were admitted to the interventional radiology department of Kartal Dr...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27895878/evaluation-of-visibility-of-foreign-bodies-in-the-maxillofacial-region-comparison-of-computed-tomography-cone-beam-computed-tomography-ultrasound-and-magnetic-resonance-imaging
#8
Solmaz Valizadeh, Hamidreza Pouraliakbar, Leila Kiani, Yaser Safi, Leila Alibakhshi
BACKGROUND: Detection of foreign bodies (FBs) is challenging. Selection of a fast and affordable imaging modality to locate the FB with minimal patient radiation dose is imperative. OBJECTIVES: This study sought to compare four commonly used imaging modalities namely cone beam computed tomography (CBCT), magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound (US) for detection of FBs in the head and neck region. MATERIALS AND METHODS: In this in vitro study, iron, glass, stone, wood, asphalt, and tooth samples measuring 0...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27882240/t2-based-temperature-monitoring-in-bone-marrow-for-mr-guided-focused-ultrasound
#9
Eugene Ozhinsky, Misung Han, Matthew Bucknor, Roland Krug, Viola Rieke
BACKGROUND: Current clinical protocols for MR-guided focused ultrasound (MRgFUS) treatment of osseous lesions, including painful bone metastases and osteoid osteomas, rely on measurement of the temperature change in adjacent muscle to estimate the temperature of the bone. The goal of this study was to determine if T2-based thermometry could be used to monitor the temperature change in bone marrow during focused ultrasound ablation of bone lesions. METHODS: We investigated the dependence of T2 on temperature in ex vivo bovine yellow bone marrow at 3T and studied the influence of acquisition parameters on the T2 measurements...
2016: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/27882112/diagnostic-value-of-high-frequency-ultrasound-and-magnetic-resonance-imaging-in-early-rheumatoid-arthritis
#10
Ming-Yu Wang, Xian-Bin Wang, Xue-Hui Sun, Feng-Li Liu, Sheng-Chuan Huang
Early diagnosis and management improve the outcome of patients with rheumatoid arthritis (RA). The present study explored the application of high-frequency ultrasound (US) and magnetic resonance imaging (MRI) in the detection of early RA. Thirty-nine patients (20 males and 19 females) diagnosed with early RA were enrolled in the study. A total of 1,248 positions, including 858 hand joints and 390 tendons, were examined by high-frequency US and MRI to evaluate the presence of bone erosion, bone marrow edema (BME), synovial proliferation, joint effusion, tendinitis and tendon sheath edema...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27860211/ultrasound-guided-peristyloid-steroid-injection-for-eagle-syndrome
#11
Timothy Maher, Hariharan Shankar
The styloid process arising from the temporal bone is normally about 2.5 cm in length. For various reasons, including trauma and inflammation, it may become elongated. This elongated styloid process, when symptomatic with clinical signs and symptoms suggestive of local compression or neuropathic pain, is termed Eagle syndrome. Glossopharyngeal neuralgia is characterized by intermittent shooting sharp pain in the jaw, throat, tongue, and ear. Conservative management includes anticonvulsants, tricyclic antidepressants, and anti-inflammatory agents...
November 11, 2016: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/27858365/tumor-blood-vessel-visualization
#12
Clarissa Gillmann, Tobias Bäuerle
Noninvasive multimodal imaging of tumor blood vessels allows the qualitative and quantitative assessment of morphological, functional, and molecular features of tumor angiogenesis longitudinally in a living organism. In this chapter we focus on the application of magnetic resonance imaging (MRI), computed tomography (CT), ultrasound (US), and positron emission tomography (PET) in tumor blood vessel visualization on the example of breast cancer bone metastasis in a nude rat model. Thereby, materials and methods are described that are needed to obtain complementary data on tumor vascularization from these imaging techniques...
2016: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27857793/newborn-with-meroanencephaly-surviving-all-odds
#13
Iraj Alam Khan, Uzma Firdaus, Syed Manazir Ali, Imran Asghar
Neural tube defects are a group of congenital anomalies of brain development that carry a significant risk of morbidity and mortality. Anencephaly is a serious form of this defect with a very poor prognosis. It can present in three forms - meroanencephaly, holoanencephaly, and craniorachischisis. Meroanencephaly is considered to be the classic form of anencephaly. It manifests as a lack of cranial vault bones and exposed dorsal neural tissue resulting from defective neural tube closure in the very early period of gestation...
July 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27856067/posterior-cruciate-ligament-retention-or-substitution-during-total-knee-arthroplasty-does-not-affect-long-term-bone-mineral-density-or-quality
#14
Yoshinori Ishii, Hideo Noguchi, Junko Sato, Koji Todoroki, Shin-Ichi Toyabe
BACKGROUND: Physical activity is recognized as one of the factors that influence bone mineral density (BMD) and bone quality after total knee arthroplasty (TKA). According to biomechanical analyses after posterior cruciate ligament (PCL) retaining (PCLR) and substituting (PCLS) TKA, each implant design has different kinematics and kinetics. The purposes of this study were: (1) to perform within-patient comparisons of the midterm and long-term effects of PCL retention in mobile-bearing TKA on proximal femur and tibia BMD and calcaneus bone quality measured using ultrasound and (2) to identify correlations between them...
October 26, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27852598/frailty-and-bone-health-in-european-men
#15
Michael J Cook, Alexander Oldroyd, Stephen R Pye, Kate A Ward, Evelien Gielen, Rathi Ravindrarajah, Judith E Adams, David M Lee, Gyorgy Bartfai, Steven Boonen, Felipe Casanueva, Gianni Forti, Aleksander Giwercman, Thang S Han, Ilpo T Huhtaniemi, Krzysztof Kula, Michael E Lean, Neil Pendleton, Margus Punab, Dirk Vanderschueren, Frederick C Wu, Terence W O'Neill
BACKGROUND: frailty is associated with an increased risk of fragility fractures. Less is known, however, about the association between frailty and bone health. METHODS: men aged 40-79 years were recruited from population registers in eight European centres for participation in the European Male Aging Study. Subjects completed a comprehensive assessment which included quantitative ultrasound (QUS) scan of the heel (Hologic-SAHARA) and in two centres, dual-energy bone densitometry (dual-energy x-ray absorptiometry, DXA)...
November 16, 2016: Age and Ageing
https://www.readbyqxmd.com/read/27848057/the-additional-benefit-of-ultrasonography-to-2010-acr-eular-classification-criteria-when-diagnosing-rheumatoid-arthritis-in-the-absence-of-anti-cyclic-citrullinated-peptide-antibodies
#16
Lanlan Ji, Xuerong Deng, Yan Geng, Zhibo Song, Zhuoli Zhang
The aim of this study was to assess the benefit of ultrasonography (US) contributing to 2010 American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) classification criteria in diagnosing rheumatoid arthritis (RA), when anti-citrullinated protein (CCP) antibody and radiographic erosions are absent. Ninety-four patients suffering from arthritis of at least one joint in hands, symptom duration of less than 2 years, normal radiographs at baseline, and negative anti-CCP had 22 joint US assessments and were followed prospectively for at least 12 months...
November 15, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27846313/clinical-and-genetic-analysis-of-multiple-endocrine-neoplasia-type-1-related-primary-hyperparathyroidism-in-chinese
#17
Jing Kong, Ou Wang, Min Nie, Jie Shi, Yingying Hu, Yan Jiang, Mei Li, Weibo Xia, Xunwu Meng, Xiaoping Xing
OBJECTIVE: Multiple endocrine neoplasia type 1-related primary hyperparathyroidism (MHPT) differs in many aspects from sporadic PHPT (SHPT). The aims of this study were to summarize the clinical features and genetic background of Chinese MHPT patients and compare the severity of the disease with those of SHPT. DESIGN AND METHODS: A total of 40 MHPT (27 sporadic, 7 families) and 169 SHPT cases of Chinese descent were retrospectively analyzed. X-rays and ultrasound were used to assess the bone and urinary system...
2016: PloS One
https://www.readbyqxmd.com/read/27836529/twelve-years-of-experience-with-miglustat-in-the-treatment-of-type-1-gaucher-disease-the-spanish-zagal-project
#18
Pilar Giraldo, Marcio Andrade-Campos, Pilar Alfonso, Pilar Irun, Koldo Atutxa, Antonio Acedo, Abelardo Barez, Margarita Blanes, Vicente Diaz-Morant, Ma Angeles Fernández-Galán, Rafael Franco, Cristina Gil-Cortes, Vicente Giner, Angela Ibañez, Paz Latre, Ines Loyola, Elisa Luño, Roberto Hernández-Martin, Blanca Medrano-Engay, José Puerta, Inmaculada Roig, Javier de la Serna, Olga Salamero, Lucia Villalón, Miguel Pocovi
We report data from a prospective, observational study (ZAGAL) evaluating miglustat 100mg three times daily orally. in treatment-naïve patients and patients with type 1 Gaucher Disease (GD1) switched from previous enzyme replacement therapy (ERT). Clinical evolution, changes in organ size, blood counts, disease biomarkers, bone marrow infiltration (S-MRI), bone mineral density by broadband ultrasound densitometry (BMD), safety and tolerability annual reports were analysed. Between May 2004 and April 2016, 63 patients received miglustat therapy; 20 (32%) untreated and 43 (68%) switched...
October 24, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/27827803/is-calcaneal-broadband-ultrasound-attenuation-a-valid-index-of-dual-energy-x-ray-absorptiometry-derived-bone-mass-in-children
#19
B K Weeks, R Hirsch, R C Nogueira, B R Beck
OBJECTIVES: The aim of the current study was to assess whether calcaneal broadband ultrasound attenuation (BUA) can predict whole body and regional dual-energy x-ray absorptiometry (DXA)-derived bone mass in healthy, Australian children and adolescents at different stages of maturity. METHODS: A total of 389 boys and girls across a wide age range (four to 18 years) volunteered to participate. The estimated age of peak height velocity (APHV) was used to classify children into pre-, peri-, and post-APHV groups...
November 2016: Bone & Joint Research
https://www.readbyqxmd.com/read/27825433/advancement-of-mr-and-pet-mr-in-prostate-cancer
#20
REVIEW
Liza Lindenberg, Mark Ahlman, Baris Turkbey, Esther Mena, Peter Choyke
Multiparametric magnetic resonance (mpMRI) imaging has assumed a larger role in the diagnosis and management of prostate cancer. The current method of detecting prostate cancer relies on blind systematic biopsy, guided only by transrectal ultrasound that generally directs the needle biopsy to sextants of the prostate rather than specific lesions. MpMRI is playing an increasing role in the detection of primary cancer as it can visualize cancers and direct biopsies. However, even mpMRI is inherently nonspecific and numerous biopsies performed under MR guidance prove to be negative...
November 2016: Seminars in Nuclear Medicine
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