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https://www.readbyqxmd.com/read/28643537/a-diffusion-weighted-imaging-study-of-basal-ganglia-in-schizophrenia
#1
Giuseppe Delvecchio, Alessandro Pigoni, Cinzia Perlini, Marco Barillari, Amelia Versace, Mirella Ruggeri, A Carlo Altamura, Marcella Bellani, Paolo Brambilla
OBJECTIVES: Several magnetic resonance imaging (MRI) studies provided evidence of selective brain abnormalities in schizophrenia, both in cortical and subcortical structures. Basal ganglia are of particular interest, given not only the high concentration of dopaminergic neurons and receptors, but also for their crucial role in cognitive functions, commonly impaired in schizophrenia. To date, very few studies explored basal ganglia using diffusion imaging, which is sensitive to microstructural organization in brain tissues...
June 23, 2017: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/28642647/comparison-between-rendering-3d-ct-and-transparent-3d-ct-in-acl-tunnel-positioning
#2
Marcos Amstalden Barros, Tiago Lazzaretti Fernandes, Dimitris Dimitriou, André Pedrinelli, Arnaldo José Hernandez
OBJECTIVE: To compare the transparent 3D computed tomography (CT) image protocol against conventional 3D-CT image-rendering protocol to assess femoral tunnel position in anatomic anterior cruciate ligament (ACL) reconstructions . METHODS: Eight knee CT scans from cadavers were analyzed by image rendering 3D-CT protocol, using Rhinoceros((r)) software. The central point of the ACL tunnel was set using the sagittal plane. Same CT scans were analyzed using transparent 3D-CT measurement protocol with OsiriX((r)) software...
January 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28641179/quantitative-study-of-the-proportion-of-the-pore-volume-of-human-fluorotic-enamel-filled-by-resin-infiltrant
#3
Frederico Barbosa de Sousa, Isabel Maria Porto Lelis, Regina Célia Bressan Queiroz Figueiredo, Andressa Cavalcanti Pires, Raquel Fernanda Gerlach
AIM: Capillarity theory predicts that the pore volume infiltrated by a liquid in a body with tubular capillaries is directly proportional to the capillary radius. The expected volume available for infiltration is the loosely bound water volume, which can be related to the capillary radii. We tested the hypothesis that the proportion of the pore volume infiltrated by resin infiltrant (Vratio(resin)) is correlated and agrees with the proportion of the pore volume with loosely bound water ( [Formula: see text] )...
June 15, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28632041/automated-volumetry-of-hippocampus-is-useful-to-confirm-unilateral-mesial-temporal-sclerosis-in-patients-with-radiologically-positive-findings
#4
Guilherme Silva, Cristina Martins, Nádia Moreira da Silva, Duarte Vieira, Dias Costa, Ricardo Rego, José Fonseca, João Paulo Silva Cunha
Background and purpose We evaluated two methods to identify mesial temporal sclerosis (MTS): visual inspection by experienced epilepsy neuroradiologists based on structural magnetic resonance imaging sequences and automated hippocampal volumetry provided by a processing pipeline based on the FMRIB Software Library. Methods This retrospective study included patients from the epilepsy monitoring unit database of our institution. All patients underwent brain magnetic resonance imaging in 1.5T and 3T scanners with protocols that included thin coronal T2, T1 and fluid-attenuated inversion recovery and isometric T1 acquisitions...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28628161/-detection-and-management-of-the-vascular-paths-in-the-lateral-sinus-wall-using-cone-beam-computed-tomography
#5
(no author information available yet)
OBJECTIVE: To detect the vascular paths in the lateral wall of maxillary sinus using cone beam computer tomography (CBCT), and to retrospect the surgical managements of avoiding bleeding complication during the lateral approach maxillary sinus elevation. METHODS: The documents of 71 consecutive patients with 81 sides maxillary sinus elevation surgery were collected. The vascular paths in the lateral wall of maxillary sinus were detected by the preoperative CBCT, and the messages about the vascular in surgical records were analyzed...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28627834/characteristics-and-distribution-of-penile-lesions-in-croatian-men-with-laboratory-confirmed-low-risk-and-high-risk-human-papillomavirus-hpv-infection
#6
Tomislav Mestrovic, Zora Profozic, Marijana Neuberg, Goran Kozina, Ivan Savic, Velimir Profozic
BACKGROUND: Studies that compare penoscopic evaluation with the results of molecular human papillomavirus (HPV) testing are scarce. This study assessed and compared both type and distribution of various penile lesions using penoscopy (peniscopy) technique in Croatian men with different, laboratory-confirmed HPV status. METHODS: From a large cohort of men attending an outpatient STD clinic for HPV testing, a total of 120 patients were randomly selected and grouped into those positive for low-risk HPV, high-risk HPV, both low-risk and highrisk HPV, and those with negative results...
May 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28621248/-imaging-of-pleural-diseases-evaluation-of-imaging-methods-based-on-chest-radiography
#7
Necdet Poyraz, Havva Kalkan, Kemal Ödev, Sami Ceran
The most commonly employed radiologic method in diagnosis of pleural diseases is conventional chest radiograph. The commonest chest- X-Ray findings are the presence of pleural effusion and thickening. Small pleural effusions are not readily identified on posteroanterior chest radiograph. However, lateral decubitus chest radiograph and chest ultrasonography may show small pleural effusions. These are more efficient methods than posteroanterior chest radiograph in the erect position for demonstrating small amounts of free pleural effusions...
March 2017: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/28615059/analysis-of-factors-that-affect-the-precision-of-the-radiographic-lateral-femoral-bowing-angle-using-a-three-dimensional-computed-tomography-based-modelling-technique
#8
Ye-Ran Li, Yu-Hang Gao, Xin Qi, Jian-Guo Liu, Lu Ding, Chen Yang, Zheng Zhang, Shu-Qiang Li
BACKGROUND: Precise measurement of lateral femoral bowing is important to achieve postoperative lower limb alignment. We aimed to investigate factors that affect the precision of the radiographic lateral femoral bowing (RLFB) angle using three-dimensional (3D) models and whether the angle affects surgery design. METHODS: Forty femurs in total were divided into two groups based on their preoperative RLFB angle. The flexion contracture angle, preoperative and postoperative RLFB angles, and intersection angle between the mechanical and anatomical axes were compared...
June 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28602259/assessment-of-condyle-position-fossa-morphology-and-disk-displacement-in-symptomatic-patients
#9
Katharina Alves Rabelo, Saulo Leonardo Sousa Melo, Marianna Guanaes Gomes Torres, Larissa Rangel Peixoto, Paulo Sérgio Flores Campos, Iêda Margarida Crusoé Rocha Rebello, Daniela Pita de Melo
OBJECTIVE: The aim of the study was to determine whether there are any associations between the morphology of the glenoid fossa, articular spaces, and disk displacement by evaluating the magnetic resonance imaging (MRI) scans of symptomatic patients. Gender and age were also evaluated for any effect on the parameters. STUDY DESIGN: MRI scans of 199 temporomandibular joints were assessed for the morphology of the glenoid fossa and articular spaces in both sagittal and coronal views...
April 19, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28600996/lower-limb-alignment-and-laxity-measures-before-during-and-after-total-knee-arthroplasty-a-prospective-cohort-study
#10
Jon V Clarke, Angela H Deakin, Frederic Picard, Philip E Riches
BACKGROUND: This study compared knee alignment and laxity in patients before, during and after total knee arthroplasty, using methodologically similar procedures, with an aim to help inform pre-operative planning. METHODS: Eighteen male and 13 female patients were recruited, mean age 66years (51-82) and mean body mass index of 33 (23-43). All were assessed pre- and postoperatively using a non-invasive infrared position capture system and all underwent total knee arthroplasty using a navigation system...
May 26, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28593385/tailor-made-management-of-thoracic-scoliosis-with-cervical-hyperextension-in-muscular-dystrophy
#11
A Angelliaume, L Harper, A Lalioui, A Delgove, Y Lefèvre
PURPOSE: We report the case of a 13-year-old boy managed for fixed cervical hyperextension due to congenital muscular dystrophy with partial merosin deficiency. He presented a right decompensated thoracic scoliosis (T6-L1 Cobb angle 72°) associated with cervical and lumbar lordosis. The spinal extension was accompanied by major flexion of the hip resulting in the trunk being bent forward. This posture caused daily severe back pain responsible for significant loss of quality of life. This led to the decision to perform surgery...
June 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28585460/assessment-of-knee-alignment-with-varus-and-valgus-force-through-the-range-of-flexion-with-non-invasive-navigation
#12
F Henderson, R Alho, P Riches, F Picard
In image-free total knee arthroplasty (TKA) navigation, infra-red markers are attached to bony landmarks to provide kinematic data intra-operatively, with the aim of improving the precision of implant placement. In non-invasive navigation, infra-red markers are attached to the skin surface, with recent evidence suggesting that this can give repeatable measurements of lower limb mechanical alignment. The aim of our study was to evaluate the use of a non-invasive navigation system in the assessment of mechanical alignment with applied coronal force through the range of flexion...
June 6, 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/28583338/distal-corporal-anchoring-stitch-a-technique-to-address-distal-corporal-crossovers-and-impending-lateral-extrusions-of-a-penile-prosthesis
#13
Gabriele Antonini, Gian Maria Busetto, Francesco Del Giudice, Matteo Ferro, Benjamin I Chung, Simon L Conti, Alfredo Suarez Sarmiento, Arianna Pacchiarotti, Ettore De Berardinis, Paul E Perito
BACKGROUND: Unidentified distal crossovers, delayed distal crossovers, and impending lateral extrusion are complications of penile prosthesis implant insertion but are not as common as prosthesis infection or mechanical failure. AIM: To evaluate results of a surgical technique, the distal corporal anchoring stitch, that addresses fixation of the penile prosthesis in patients with these complications. METHODS: A lateral sub-coronal incision is used on the side where the crossover or laterally extruding cylinder should be positioned...
June 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28567141/reproducibility-of-a-digital-method-to-evaluate-soft-tissue-modifications-a-study-of-inter-and-intra-operative-measurement-concordance
#14
Davide Rancitelli, Marco Cicciù, Francesco Lini, Davide Fumagalli, Anna Chiara Frigo, Carlo Maiorana
BACKGROUND: The soft tissue healing and quality around dental implant is a current debated topic in the recent literature. The free gingival margin and the quantity and quality of the mucosa around teeth and surrounding dental implants still determine the hard and soft tissue healing status. OBJECTIVE: The aim of this study is to assess inter and intra-operative measurement concordance of a method aimed at evaluating the apico-coronal migration of free gingival margin, using intra-oral photography...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/28566780/radiologic-assessment-of-femoral-and-tibial-tunnel-placement-based-on-anatomic-landmarks-in-arthroscopic-single-bundle-anterior-cruciate-ligament-reconstruction
#15
Sandeep Kumar Nema, Gopisankar Balaji, Sujiv Akkilagunta, Jagdish Menon, Murali Poduval, Dilip Patro
BACKGROUND: Accurate tibial and femoral tunnel placement has a significant effect on outcomes after anterior cruciate ligament reconstruction (ACLR). Postoperative radiographs provide a reliable and valid way for the assessment of anatomical tunnel placement after ACLR. The aim of this study was to examine the radiographic location of tibial and femoral tunnels in patients who underwent arthroscopic ACLR using anatomic landmarks. Patients who underwent arthroscopic ACLR from January 2014 to March 2016 were included in this retrospective cohort study...
May 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28565759/oral-administration-of-ampelopsin-protects-against-acute-brain-injury-in-rats-following-focal-cerebral-ischemia
#16
Xiao-Li Ye, Ling-Qun Lu, Wei Li, Qi Lou, Hong-Gang Guo, Qiao-Juan Shi
Ampelopsin (AMP) is isolated from the Chinese medicinal herb Ampelopsis grossedentata (Hand-Mazz) and has been associated with numerous biological and pharmacological activities. However, it is not clear whether AMP has a direct protective effect on cerebral ischemia reperfusion injury. Therefore, the present study investigated its role in acute brain injury following focal cerebral ischemia in rats. The current study induced transient focal cerebral ischemia by performing middle cerebral artery occlusion (MCAO) for 60 min, followed by 24 h of reperfusion...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28560546/medial-parapatellar-approach-leads-to-internal-rotation-of-tibial-component-in-total-knee-arthroplasty
#17
Filippo-Franco Schiapparelli, Felix Amsler, Michael T Hirschmann
PURPOSE: The purpose of this study was to investigate if the type of approach [medial parapatellar approach (MPA) versus lateral parapatellar approach with tibial tubercle osteotomy (LPA)] influences rotation of femoral and/or tibial component and leg axis in total knee arthroplasty (TKA). It was the hypothesis that MPA leads to an internally rotated tibial TKA component. METHODS: This study included 200 consecutive patients in whom TKA was performed using either a parapatellar medial (n = 162, MPA) or parapatellar lateral approach with tibial tubercle osteotomy (n = 38, LPA)...
May 30, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28559005/tibial-insertions-of-the-anterior-cruciate-ligament-and-the-anterior-horn-of-the-lateral-meniscus-a-histological-and-computed-tomographic-study
#18
Masashi Kusano, Yasukazu Yonetani, Tatsuo Mae, Ken Nakata, Hideki Yoshikawa, Konsei Shino
BACKGROUND: A positional relationship between the anterior cruciate ligament (ACL) and the anterior horn of the lateral meniscus (AHLM) has not previously been a topic of interest in the literature because the AHLM is already known to be obviously adjacent to the ACL and is assumed as a lateral border. The objective of this study was to investigate the positional anatomic relationship between the ACL and AHLM by histological evaluation of sequential slices and computed tomography (CT) of the tibial insertion sites...
May 27, 2017: Knee
https://www.readbyqxmd.com/read/28550668/-the-relationship-between-18-f-fdg-pet-ct-metabolic-parameters-and-clinicopathological-features-of-breast-cancer
#19
B Tang, Y Zhang, J Zhou, Y Xu, T R Li, C Y Ding
Objective: To investigate the relationship between metabolic parameters of primary lesion and clinicopathological features of patients with breast cancer. Methods: Clinical data of 78 patients with breast cancer undergone (18)F-FDG PET/CT before surgery was retrospectively analyzed. SUVmax, SUVmean and metabolic tumor volume (MTV) of primary lesions were measured by horizontal, sagittal and coronal position volume section with a threshold of 40% SUVmax. TLG was calculated and the highest SUVmax among metastatic lymph nodes was measured...
April 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28548232/hard-and-soft-tissue-integration-of-immediate-and-delayed-implants-with-a-modified-coronal-macro-design-histologic-micro-ct-and-volumetric-soft-tissue-changes-from-a-pre-clinical-in-vivo-study
#20
I Sanz-Martin, F Vignoletti, J Nuñez, M Permuy, F Muñoz, J Sanz-Esporrín, L Fierravanti, L Shapira, M Sanz
AIM: To study the healing of peri-implant tissues around implants with a triangular coronal third (test) or cylindrical (control). MATERIAL AND METHODS: In eight beagle dogs, immediate and delayed implants were placed. Test and control implants were randomly assigned and the hard and soft tissue healing was evaluated with histology and Micro CT analysis at 4 weeks and 12 weeks. The soft tissue contour changes were assessed by image analysis software. RESULTS: When measured at the implant shoulder level, the buccal crestal width (primary outcome assessed in mm) attained similar values in test and control implants...
May 26, 2017: Journal of Clinical Periodontology
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