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https://www.readbyqxmd.com/read/29055138/effects-of-a-bone-graft-substitute-consisting-of-porous-gradient-ha-zro2-and-gelatin-chitosan-slow-release-hydrogel-containing-bmp-2-and-bmscs-on-lumbar-vertebral-defect-repair-in-rhesus-monkey
#1
Rong-Xue Shao, Ren-Fu Quan, Tuo Wang, Wei-Bin Du, Gao-Yong Jia, Dong Wang, Long-Bao Lv, Cai-Yin Xu, Xi-Cheng Wei, Jin-Fu Wang, Di-Sheng Yang
Dense biomaterial plays an important role in bone replacement. However, it fails to induce bone-cell migration into graft material. In the present study, a novel bone-graft substitute (BGS) consisting of porous gradient HA/ZrO2 composite (PGHC) and gelatin/chitosan slow-release hydrogel containing BMP-2 and BMSCs was designed and prepared to repair lumbar vertebral defects. The morphological characteristics of the BGS evaluated by scanning electron microscope showed that it had a three-dimensional network structure with uniformly distributed chitosan microspheres on the surfaces of the graft material and the interior of the pores...
October 21, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29054314/bedside-chest-radiographs-in-the-intensive-care-setting-wireless-direct-radiography-compared-to-computed-radiography
#2
REVIEW
Craig R Audin, Shima Aran, Victorine V Muse, Gerald F Abbott, Jeanne B Ackman, Amita Sharma, Carol C Wu, Mannudeep K Kalra, Theresa C McLoud, Jo-Anne O Shepard, Florian J Fintelmann, Matthew D Gilman
OBJECTIVES: To compare image quality, visibility of anatomic landmarks, tubes and lines, and other clinically significant findings on portable (bedside) chest radiographs acquired with wireless direct radiography (DRw) and computed radiography (CR). METHODS: In a prospective IRB-approved and HIPAA-compliant study, portable DRw (DRX-1C mobile retrofit portable wireless direct radiography, CareStream Inc., Rochester, NY) and portable CR (AGFA CR (DXG) version; NIM2103, AGFA Healthcare, Ridgefield Park, NJ) images of the chest were acquired within 24-hours in 80 patients in the intensive care unit (ICU)...
September 21, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29052774/intrathoracic-tuberculous-lymphadenopathy-in-children-a-guide-to-chest-radiography
#3
REVIEW
Anthony George, Savvas Andronikou, Tanyia Pillay, Pierre Goussard, Heather J Zar
Making the diagnosis of pulmonary tuberculosis in children can be difficult because microbiological confirmation is not often achieved. Diagnosis is therefore often based on clinical features in combination with chest radiograph findings. Chest radiographs can demonstrate lymphadenopathy of the hilar and para-tracheal regions on the anteroposterior view, and subcarinal lymphadenopathy on the lateral view. However poor interobserver agreement has been reported for radiologist and clinician assessment of lymphadenopathy...
September 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29052772/imaging-of-thoracic-tuberculosis-in-children-current-and-future-directions
#4
REVIEW
Kushaljit Singh Sodhi, Ashu S Bhalla, Nasreen Mahomed, Bernard F Laya
Tuberculosis continues to be an important cause of morbidity and mortality worldwide. It is the leading cause of infection-related deaths worldwide. Children are amongst the high-risk groups for developing tuberculosis and often pose a challenge to the clinicians in making a definitive diagnosis. The newly released global tuberculosis report from World Health Organization reveals a 50% increase in fatality from tuberculosis in children. Significantly, diagnostic and treatment algorithms of tuberculosis for children differ from those of adults...
September 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29051827/membrane-like-structure-in-the-urinary-bladder-neck-of-a-young-cat-diagnosis-and-treatment-using-balloon-dilatation-and-a-balloon-expandable-metallic-stent
#5
Matias Ruiz-Drebing, Fui Yap, Mayank Seth, Ruth Dennis, Elisabet Dominguez
CASE SUMMARY: A 33-month-old, spayed female domestic shorthair cat was referred to the Animal Health Trust for the investigation of urinary incontinence and straining to urinate. A membrane-like structure was detected in the bladder neck, which caused partial obstruction of the urinary bladder. A combination of different imaging techniques, including ultrasonography, radiography, CT and fluoroscopy, was essential in the diagnosis, surgical planning and treatment of this intravesicular stricture...
July 2017: JFMS open reports
https://www.readbyqxmd.com/read/29049949/rhinovirus-viremia-in-adult-patients-with-high-viral-load-in-bronchoalveolar-lavages
#6
Anneloes L Van Rijn, Eric C Claas, Peter A von dem Borne, Aloys C M Kroes, Jutte J C de Vries
BACKGROUND: In children, rhinovirus viremia has been associated with higher nasopharyngeal loads and increase in severity of clinical signs and symptoms. OBJECTIVES: This study aims to detect rhinovirus viremia in adult patients and to establish potential correlations with the clinical course. STUDY DESIGN: Adult patients with rhinovirus strongly positive bronchoalveolar lavages (BAL, quantitation cycle, Cq values <25) detected between 2008 and 2014 were studied retrospectively...
October 12, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/29049308/the-relationship-between-intradialytic-hypotension-and-vascular-calcification-in-hemodialysis-patients
#7
AJin Cho, Young-Ki Lee, Jieun Oh, Jong-Woo Yoon, Dong Ho Shin, Hee Jung Jeon, Myung-Jin Choi, Jung-Woo Noh
BACKGROUND: Vascular calcification is associated with structural and functional abnormality of the heart and blood vessels. We investigated the relationship between intradialytic hypotension (IDH) and vascular calcification in hemodialysis (HD) patients, and their impacts on cardiovascular events (CVEs). METHOD: We enrolled 191 maintenance HD patients who underwent plain abdomen radiography for abdominal aortic calcification score (AACS). A nadir systolic blood pressure (BP) < 90 mm Hg or the requirement of bolus fluid administration was required to quantify the hypotension diagnosis...
2017: PloS One
https://www.readbyqxmd.com/read/29049244/isolated-heptadactylia-a-case-report-of-central-polydactyly-of-the-foot
#8
Nicolas Piette, Pierre-Yves Zambelli, Daniel N'Dele
RATIONALE: Heptadactylia is a rare congenital disorder from the polydactyly family. Polydactyly is generally classified into 3 major groups: preaxial (medial ray), postaxial (lateral ray), and central polydactyly. Most common cases are related to preaxial or postaxial polydactyly. The rarity of central polydactyly can be explained in 3 ways. First, central polydactyly with duplication appearing on metatarsal is pretty uncommon. Second, the duplication appears isolated on the foot. Polydactyly is mostly associated with other physical defects or others duplications...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29049196/three-dimensional-reduction-and-finite-element-analysis-improves-the-treatment-of-pelvic-malunion-reconstructive-surgery-a-case-report
#9
Sascha Kurz, Philipp Pieroh, Maximilian Lenk, Christoph Josten, Jörg Böhme
RATIONALE: Pelvic malunion is a rare complication and is technically challenging to correct owing to the complex three-dimensional (3D) geometry of the pelvic girdle. Hence, precise preoperative planning is required to ensure appropriate correction. Reconstructive surgery is generally a 2- or 3-stage procedure, with transiliac osteotomy serving as an alternative to address limb length discrepancy. PATIENT CONCERNS: A 38-year-old female patient with a Mears type IV pelvic malunion with previous failed reconstructive surgery was admitted to our department due to progressive immobilization, increasing pain especially at the posterior pelvic arch and a leg length discrepancy...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29048110/morphometric-and-morphologic-parameters-of-the-heart-in-healthy-alouatta-guariba-clamitans-cabrera-1940
#10
Murilo Gomes de Soutello Charlier, Maurício Gianfrancesco Filippi, Carolina Hagy Girotto, Vanessa Lanes Ribeiro, Carlos Roberto Teixeira, Maria Lúcia Gomes Lourenço, Luiz Carlos Vulcano
BACKGROUND: This study aimed at assessing the heart function of one neotropical primate (Alouatta guariba clamitans) kept in captivity using radiography, electrocardiogram (ECG) and Doppler echocardiography. METHODS: Ten adult healthy howler monkeys (A. g. clamitans) were evaluated under general anaesthesia. Vertebral Heart Scores (VHS) were obtained from radiographic studies. Ejection fraction, shortening fraction of left ventricle, left atrial/aortic root ratio, ascending aortic diameter, peak velocity of pulmonary, mitral, tricuspid and aortic blood flow and other values were measured by Doppler echocardiography...
October 19, 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/29046919/female-gonadal-shielding-with-automatic-exposure-control-increases-radiation-risks
#11
Summer L Kaplan, Dennise Magill, Marc A Felice, Rui Xiao, Sayed Ali, Xiaowei Zhu
BACKGROUND: Gonadal shielding remains common, but current estimates of gonadal radiation risk are lower than estimated risks to colon and stomach. A female gonadal shield may attenuate active automatic exposure control (AEC) sensors, resulting in increased dose to colon and stomach as well as to ovaries outside the shielded area. OBJECTIVE: We assess changes in dose-area product (DAP) and absorbed organ dose when female gonadal shielding is used with AEC for pelvis radiography...
October 18, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29046723/etiological-factors-in-hallux-valgus-a-three-dimensional-analysis-of-the-first-metatarsal
#12
Tomohiko Ota, Takeo Nagura, Tetsuro Kokubo, Masateru Kitashiro, Naomichi Ogihara, Kenichiro Takeshima, Hiroyuki Seki, Yasunori Suda, Morio Matsumoto, Masaya Nakamura
BACKGROUND: It has been reported that hallux valgus (HV) is associated with axial rotation of the first metatarsal (1MT). However, the association between HV and torsion of the 1MT head with respect to the base has not been previously investigated. The present study examined whether there was a significant difference in 1MT torsion between HV and control groups. METHODS: Three-dimensional (3D) computed tomography (CT) scans of 39 ft were obtained, and 3D surface models of the 1MT were generated to quantify the torsion of the head with respect to the base...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29045425/comorbidities-and-health-related-quality-of-life-in-koreans-with-knee-osteoarthritis-data-from-the-korean-national-health-and-nutrition-examination-survey-knhanes
#13
Hyemin Jeong, Sun Young Baek, Seon Woo Kim, Yeong Hee Eun, In Young Kim, Jaejoon Lee, Chan Hong Jeon, Eun-Mi Koh, Hoon-Suk Cha
OBJECTIVES: This study aimed to evaluate the association of knee osteoarthritis (OA) with comorbidities and health-related quality of life (HRQOL). METHODS: A total of 8,907 (weighted n = 13,687,058) participants aged ≥50 years who had undergone knee radiography were selected from the 2010-2012 Korea National Health and Nutrition Examination Survey. OA was classified into four subgroups based on the presence or absence of pain and radiographic OA (ROA): non-OA (Pain-/ROA-), pain only (Pain+/ROA-), ROA only (Pain-/ROA+), and painful ROA (Pain+/ROA+)...
2017: PloS One
https://www.readbyqxmd.com/read/29045229/case-247-jersey-finger-of-the-fifth-finger
#14
Viviane Marie Créteur, Pierre François Durieux, Nicolas Cuylits
History A 34-year-old man without underlying medical conditions came to the emergency department for evaluation of persistent pain over the volar portion of his right fifth finger after a fall during a football match 3 days before. At physical examination, the injured finger was swollen and purple. Passive and active flexion of the proximal and distal interphalangeal joints were compromised, without interphalangeal instability. Radiography was performed in the emergency department, and the patient was released with a diagnosis of a fifth digit sprain...
November 2017: Radiology
https://www.readbyqxmd.com/read/29045182/validity-of-radiograph-based-infrapatellar-fat-pad-opacity-grading-for-assessing-knee-synovitis-correlation-with-contrast-enhanced-mri
#15
Seong Jong Yun, Youngsik Lim, Wook Jin, Yong Sung Park, Sun Hwa Lee, Kyung Nam Ryu
OBJECTIVE: The purpose of this study was to determine the validity of infrapatellar fat pad (IPFP) opacity grading based on lateral knee radiography for assessing knee synovitis using correlation with contrast-enhanced (CE) MRI. MATERIALS AND METHODS: Retrospective reviews of radiographs and CE knee MR images from 79 patients were independently performed by two radiologists. They evaluated IPFP opacity alteration (IPFPCR) and joint effusion (EFFCR) grades on lateral knee conventional radiographs, IPFP signal intensity alteration (IPFPMR) and joint effusion (EFFMR) grades on CE MR images, and synovitis (SYNMR) grade in nine divided regions, three compartments (parapatellar, periligamentous, perimeniscal), and the whole knee on CE MR images...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29044898/use-of-computed-tomography-and-minimum-intensity-projection-in-the-detection-of-lobar-pneumonia-mimicking-lung-lobe-torsion-in-a-dog
#16
Sang-Kwon Lee, Kyoung-Oh Cho, Mia Madel Alfajaro, Juhwan Lee, Dohyeon Yu, Jihye Choi
A 10-year-old female spayed Dachshund was referred with progressive coughing for 1 month. The dog was tentatively diagnosed with right middle lung torsion based on pleural effusion, vesicular emphysema, abruptly ending bronchus in consolidated right middle lung, and no contrast enhancement of the affected lobe on radiography and computed tomography (CT). There was no evidence of torsion upon thoracotomy, and histological examination confirmed lobar pneumonia. The CT images were reevaluated using minimum intensity projection and revealed normal bronchial courses...
October 16, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29044618/ultrasonographic-screening-for-subclinical-osteochondrosis-of-the-femoral-trochlea-in-foals-28-166-days-old-a-prospective-farm-study
#17
G Martel, D Crowley, J Olive, J Halley, S Laverty
BACKGROUND: Extensive osteochondritis dissecans (OCD) lesions of the lateral ridge of the trochlea of the femur (LRTF), the most common OCD- affected site in the stifle, have a poor outcome with surgical debridement and can be career ending. The early detection of osteochondrosis lesions and their conservative management holds the promise to enhance outcome. We hypothesise that ultrasonography is a valuable field screening tool to detect and monitor early subclinical LRTF osteochondrosis...
October 17, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29043423/preliminary-report-from-the-world-health-organisation-chest-radiography-in-epidemiological-studies-project
#18
REVIEW
Nasreen Mahomed, Nicholas Fancourt, John de Campo, Margaret de Campo, Aliu Akano, Thomas Cherian, Olivia G Cohen, David Greenberg, Stephen Lacey, Neera Kohli, Henrique M Lederman, Shabir A Madhi, Veronica Manduku, Eric D McCollum, Kate Park, Jose Luis Ribo-Aristizabal, Naor Bar-Zeev, Katherine L O'Brien, Kim Mulholland
Childhood pneumonia is among the leading infectious causes of mortality in children younger than 5 years of age globally. Streptococcus pneumoniae (pneumococcus) is the leading infectious cause of childhood bacterial pneumonia. The diagnosis of childhood pneumonia remains a critical epidemiological task for monitoring vaccine and treatment program effectiveness. The chest radiograph remains the most readily available and common imaging modality to assess childhood pneumonia. In 1997, the World Health Organization Radiology Working Group was established to provide a consensus method for the standardized definition for the interpretation of pediatric frontal chest radiographs, for use in bacterial vaccine efficacy trials in children...
October 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29043420/lung-ultrasound-for-the-diagnosis-of-community-acquired-pneumonia-in-children
#19
REVIEW
Jacob A M Stadler, Savvas Andronikou, Heather J Zar
Ultrasound (US) has been proposed as an alternative first-line imaging modality to diagnose community-acquired pneumonia in children. Lung US has the potential benefits over chest radiography of being radiation free, subject to fewer regulatory requirements, relatively lower cost and with immediate bedside availability of results. However, the uptake of lung US into clinical practice has been slow and it is not yet included in clinical guidelines for community-acquired pneumonia in children. The aim of this review is to give an overview of the equipment and techniques used to perform lung US in children with suspected pneumonia and the interpretation of relevant sonographic findings...
October 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29043419/computed-tomography-in-children-with-community-acquired-pneumonia
#20
REVIEW
Savvas Andronikou, Pierre Goussard, Erich Sorantin
Diagnostic imaging plays a significant role in both the diagnosis and treatment of complications of pneumonia in children and chest radiography is the imaging modality of choice. Computed tomography (CT) on the other hand, is not currently a first-line imaging tool for children with suspected uncomplicated community-acquired pneumonia and is largely reserved for when complications of pneumonia are suspected or there is difficulty in differentiating pneumonia from other pathology. This review outlines the situations where CT needs to be considered in children with pneumonia, describes the imaging features of the parenchymal and pleural complications of pneumonia, discusses how CT may have a wider role in developing countries where human immunodeficiency virus (HIV) and tuberculosis are prevalent, makes note of the role of CT scanning for identifying missed foreign body aspiration and, lastly, addresses radiation concerns...
October 2017: Pediatric Radiology
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