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https://www.readbyqxmd.com/read/29791960/ultrasound-of-the-brachial-plexus
#1
James F Griffith
Examination of the brachial plexus with ultrasound is efficient because it allows many parts of the brachial plexus as well as the surrounding soft tissues to be assessed with high spatial resolution. The key to performing good ultrasound of the brachial plexus is being familiar with the anatomy and the common variants. That makes it possible to concentrate solely on the ultrasound appearances free of simultaneously wondering about the anatomy. Ultrasound of the brachial plexus is particularly good for assessing nerve sheath tumor, perineural fibrosis, metastases, some inflammatory neuropathies, neuralgic amyotrophy, and posttraumatic sequalae...
July 2018: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/29771753/anatomic-variations-of-the-infraorbital-foramen-in-caucasian-versus-african-american-skulls
#2
Kevin R Zhang, Alexander D Blandford, Catherine J Hwang, Julian D Perry
PURPOSE: The infraorbital foramen (IOF) represents a highly conserved structure but demonstrates morphologic variability. The purpose of this study is to describe the IOF location, size, and supernumerary foramina in an African American population and compare it with a Caucasian population. METHODS: Sixty African American and 60 Caucasian skulls from the Hamann-Todd collection of the Cleveland Museum of Natural History were studied. The primary outcome was the number of accessory IOF and measurements of the location, size, shape, and direction of each foramen...
May 2, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29766939/minimally-invasive-options-for-surgical-management-of-adjacent-segment-disease-of-the-lumbar-spine
#3
Mazda K Turel, Mena G Kerolus, Brian T David, Richard G Fessler
Background: The incidence of adjacent segment disease (ASD) after lumbar spine surgery is a condition that has become increasingly common as the rate of lumbar spine surgery continues to rise. Minimally invasive techniques continue to be refined and offer an opportunity to treat ASD with minimal tissue disruption, lower blood loss, a shorter hospital stay, and decreased morbidity. The aim of this report is to describe the various minimally invasive options for ASD with a comprehensive review of the existing literature...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29766231/available-bone-morphology-and-status-of-neural-structures-in-the-mandibular-interforaminal-region-three-dimensional-analysis-of-anatomical-structures
#4
Duygu Goller Bulut, Emre Köse
PURPOSE: This study aimed to clarify the size and morphology of the mandible and to determine state of neural structures for the planning of the dental implantation using cone-beam computerized tomography (CBCT). METHODS: Of the 252 patients, CBCT images of 48 selected patients were evaluated. The bone height and width were measured and the type of the mental portion of the inferior alveolar canal, the anterior loop length (ALL), the location of the incisive canal and lingual foramen were identified with cross-sectional and multiplane reformatted CBCT images...
May 15, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29737380/the-zonal-pattern-of-arterial-supply-to-the-brachial-plexus-and-its-clinical-significance
#5
An-Bo Gao, Yun-Cheng Lv, Ai-Ping Wang, Li-Yuan Zhong, Mao-Lin Tang, Binu-Prathap Thomas, Tian-Hong Peng
PURPOSE: To provide the anatomical basis of blood supply of brachial plexus for the clinical microsurgical treatment of brachial plexus injury. METHODS: Thirteen adult anticorrosive cadaveric specimens (8 males, 5 females) were dissected in this study. 3 fresh cases (2 males, 1 female) were used to observe the zonal pattern of arteries supplying brachial plexus, and 10 cases (6 males, 4 females) were used to observe the source and distribution of the brachial plexus arteries under microscope...
May 8, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29732629/an-original-micro-ct-study-and-meta-analysis-of-the-internal-and-external-anatomy-of-maxillary-molars-implications-for-endodontic-treatment
#6
Iwona M Tomaszewska, Anna Jarzębska, Bendik Skinningsrud, Przemysław A Pękala, Sebastian Wroński, Joe Iwanaga
INTRODUCTION: The aim of this work was to conduct a radiological micro-CT study and meta-analysis to determine the morphological features of the root canal anatomy of the maxillary molars. MATERIALS AND METHODS: The radiological study included micro-CT scans of 110 maxillary first molars and 98 maxillary second molars. To identify articles eligible for inclusion in our meta-analysis, PubMed, Embase, and Web of Science were search comprehensively. The following data were extracted: study type (cadaveric, intraoperative or imaging), Vertucci types of canal configuration, presence/number of canals, roots, apical foramina, apical deltas, and inter-canal communications...
May 7, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29729847/siope-brain-tumor-group-consensus-guideline-on-craniospinal-target-volume-delineation-for-high-precision-radiotherapy
#7
Thankamma Ajithkumar, Gail Horan, Laetitia Padovani, Nicky Thorp, Beate Timmermann, Claire Alapetite, Lorenza Gandola, Monica Ramos, Karen Van Beek, Melissa Christiaens, Yasmin Lassen-Ramshad, Henriette Magelssen, Kristina Nilsson, Frank Saran, Barbara Rombi, Rolf Kortmann, Geert O Janssens
OBJECTIVE: To develop a consensus guideline for craniospinal target volume (TV) delineation in children and young adults participating in SIOPE studies in the era of high-precision radiotherapy. METHODS AND MATERIALS: During four consensus meetings (Cambridge, Essen, Liverpool, and Marseille), conventional field-based TV has been translated into image-guided high-precision craniospinal TV by a group of expert paediatric radiation oncologists and enhanced by MRI images of liquor distribution...
May 2, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29725508/the-relationship-amongst-intervertebral-disc-vertical-diameter-lateral-foramen-diameter-and-nerve-root-impingement-in-lumbar-vertebra
#8
M I Yusof, M N Hassan, M S Abdullah
Introduction: The vertical diameter of the foramen is dependent upon the vertical diameter of the corresponding intervertebral disc. A decrease in disc vertical diameter has direct anatomic consequences to the foraminal diameter and area available for the nerve root passing through it. This study is to establish the relationship amongst the intervertebral disc vertical diameter, lateral foramen diameters and nerve root compression in the lumbar vertebra. Materials and Methods: Measurements of the study parameters were performed using sagittal MRI images...
March 2018: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29721357/spinal-angiolipoma-mimicking-a-schwannoma-a-case-report
#9
Abrar A Wani, Arif H Sarmast, Altaf U Ramzan, Abdul Q Khan, Sarabjit S Chhibber, Nayil K Malik, Feroz Shaheen
Background: Angiolipomas rarely involve the spinal canal/foramina, and may prove difficult to differentiate from schwannomas. Case Description: Here we report a patient who presented with a spinal angiolipoma contributing to spinal cord and neural foraminal compression that was difficult to differentiate from a schwannoma. Conclusion: Spinal angiolipomas rarely involve the spinal canal/foramina. Utilizing neurodiagnostic studies with pathological confirmation, these lesions may be differentiated from schwannomas...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29708572/relationship-between-foraminal-area-and-degenerative-changes-in-the-lower-cervical-spine-with-implications-for-c5-nerve-root-palsy
#10
Matthew V Abola, Derrick M Knapik, Anahid A Hamparsumian, Randall E Marcus, Raymond W Liu, Zachary L Gordon
Preoperative foraminal stenosis at C4/5 is a predisposing risk factor for C5 nerve root palsy in elderly patients. However, the area of the C4/5 intervertebral foramen and its relationship to the extent of arthrosis and lower foraminal areas (C5/6 and C6/7) are unknown. The authors sought to compare the areas of the cervical intervertebral foramen at the C4/5, C5/6, and C6/7 levels, noting any differences across race or sex and the relationship between foraminal area and arthrosis grade. A total of 600 cervical foramina from an osseous collection were examined...
April 27, 2018: Orthopedics
https://www.readbyqxmd.com/read/29690583/anatomical-and-radiographic-study-on-the-skull-and-mandible-of-the-common-opossum-didelphis-marsupialis-linnaeus-1758-in-the-caribbean
#11
Reda Mohamed
Common opossums ( Didelphis marsupialis ) are found throughout the Caribbean island of Trinidad and Tobago. The present work was conducted on 10 skulls and mandibles of the common opossum to describe the osteology and foramina of these skulls and mandibles grossly and radiographically. The information that is garnered can be used to detect, diagnose, and treat head affections, as well as for comparative studies with the skulls and mandibles of other similar species. The skulls and mandibles were prepared and cleaned using standard method...
April 23, 2018: Veterinary Sciences
https://www.readbyqxmd.com/read/29689770/new-deep-cheilostomata-bryozoa-species-from-the-southwestern-atlantic-shedding-light-in-the-dark
#12
Blanca Figuerola, Dennis P Gordon, Javier Cristobo
The present paper reports on 22 bryozoan species collected from 25 localities on the Southwestern Atlantic continental shelf and slope by the Instituto Español de Oceanografía vessel RV Miguel Oliver (2008-2010). Two new genera, Amynaskolia n. gen. and Biconcavus n. gen., and twenty new cheilostome species are described: Amastigia zigzag n. sp., Membranicellaria balanyai n. sp., Figularia dimorpha n. sp., Biconcavus batmani n. sp., Smittina acicularis n. sp., Smittoidea granulosa n. sp., Amynaskolia foramina n...
January 24, 2018: Zootaxa
https://www.readbyqxmd.com/read/29688066/high-field-structural-mri-in-the-management-of-degenerative-cervical-myelopathy
#13
Dan Wright, Sean Martin, Erlick Ac Pereira, Yazhuo Kong, Irene Tracey, Thomas Cadoux-Hudson
INTRODUCTION: This is a narrative overview of the pathophysiology, investigation and management of Degenerative Cervical Myelopathy (DCM). This review article also takes a look ahead to the impact high resolution MRI may have on treatment. BACKGROUND: DCM is the most common cause of spinal dysfunction and yet it remains poorly understood. It is becoming increasingly common in our ageing population. Disc and facet joint abnormalities, osteophytes, spondylothisthesis and ligamentous hypertrophy all act together to produce spinal canal and neuronal foramina stenosis which in turn causes neural compromise...
April 24, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29686811/preliminary-study-on-contrast-flow-analysis-of-thoracic-transforaminal-epidural-block
#14
Ji Hee Hong, Kyoung Min Noh, Ki Bum Park
Background: The thoracic transforaminal epidural block (TTFEB) is usually performed to treat herpes zoster or postherpetic neuralgia (PHN). Especially, multiple segmental involvements and approximate contrast medium spread range, according to volume, help to choose the proper drug volume in the transforaminal epidural block. This study investigated the contrast medium spread patterns of 1-ml to 3-ml TTFEBs. Methods: A total of 26 patients with herpes zoster or PHN were enrolled in this study...
April 2018: Korean Journal of Pain
https://www.readbyqxmd.com/read/29681478/deviations-of-mesial-root-canals-of-mandibular-first-molar-teeth-at-the-apical-third-a-micro-computed-tomographic-study
#15
Ali Keles, Cangül Keskin
INTRODUCTION: The present study aimed to quantitatively analyze apical foramen deviations of mesial root canals of mandibular first molar teeth by means of micro-computed tomographic (micro-CT) imaging. METHODS: Micro-CT images of the mesial roots of 109 mandibular first molar teeth with independent mesiobuccal (MB) and mesiolingual (ML) root canals were analyzed. The deviations of the apical foramina of the MB, ML, and middle mesial root canals from the anatomic apex were measured...
April 19, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29681084/identification-of-a-novel-homozygous-alx4-mutation-in-two-unrelated-patients-with-frontonasal-dysplasia-type-2
#16
Mona El-Ruby, Alaa El-Din Fayez, Sara H El-Dessouky, Mona S Aglan, Inas Mazen, Nora Ismail, Hanan H Afifi, Maha M Eid, Mostafa I Mostafa, Mennat I Mehrez, Yasmin Khalil, Maha S Zaki, Khaled R Gaber, Mohamed S Abdel-Hamid, Ghada M H Abdel-Salam
We report two unrelated boys with frontonasal dysplasias type-2 (FND-2) who shared an identical novel homozygous ALX4 mutation c.291delG (p.Q98Sfs*83). Both patients presented with a large skull defect but one had bilateral parietal meningocele-like cysts that lie along with the bony defect and increased in size with age. Scalp alopecia, hypertelorism, and clefted alae nasi were also detected in both of them. Furthermore, impalpable gonads were noted, being unilateral in one and bilateral in the other. Neuroimaging showed small dysplastic occipital lobes with dysgyria and midline subarachnoid cyst...
May 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29680848/changes-in-dimension-of-neurovascular-canals-in-the-mandible-and-maxilla-a-radiographic-finding-in-patients-diagnosed-with-mronj
#17
D Goller-Bulut, G Özcan, F Avci
BACKGROUND: The aim of this retrospective study was to compare the morphological features of neurovascular canals and foramina of patients with medication-related osteonecrosis of the jaws (MRONJ) and healthy individuals by using cone beam computed tomography (CBCT). MATERIAL AND METHODS: The CBCT images of 58 patients under bisphosphonate therapy diagnosed with MRONJ and age gender- matched controls were retrospectively evaluated. The diameter of mandibular and nasopalatine canal and mandibular, mental and lingual foramina were measured on several sections of CBCT...
May 1, 2018: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/29678345/dimensions-around-the-nutrient-foramina-of-the-tibia-and-fibula-in-the-estimation-of-sex
#18
Mamorapelo D Fasemore, Mubarak A Bidmos, Palesa Mokoena, Aminu Imam, Brendon K Billings, Pedzisai Mazengenya
Sex estimation from skeletal remains is one of the key components in establishing a biological profile and consequent identification of an individual in a forensic and medico-legal practice. The use of dimensions around the nutrient foramen in instances where long bones may be fragmented and damaged is of benefit due to the fact that the nutrient foramen is easily identifiable and may be preserved on the shaft of long bones. This study is an investigation of the usefulness of various measurements around the nutrient foramen of the tibia and fibula of South Africans in an attempt to develop osteometric standards for sex estimation...
March 30, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29674819/analysis-of-mandibular-second-molars-with-fused-roots-and-shallow-radicular-grooves-by-using-micro-computed-tomography
#19
Pablo Amoroso-Silva, Ivaldo Gomes De Moraes, Marilia Marceliano-Alves, Clovis Monteiro Bramante, Ronald Ordinola Zapata, Marco Antonio Hungaro Duarte
Aim: This study aimed to describe the morphological and morphometric aspects of fused mandibular second molars with radicular shallow grooves using micro-computed tomography (CT). Materials and Methods: Eighty-eight mandibular second molars with fused roots were scanned in a micro-CT scanner at a voxel size of 19.6 μm. After reconstruction, only molars without C-shaped roots and presenting shallow radicular grooves were selected. 30 molars were chosen for further analysis...
March 2018: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29664450/quantitative-assessment-of-vertebral-artery-anatomy-in-relation-to-cervical-pedicles-surgical-considerations-based-on-regional-differences
#20
Amro Al-Habib, Fahad Albadr, Jehad Ahmed, Abdulrahman Aleissa, Abdullah Al Towim
OBJECTIVE: To quantify the anatomic relationship between the Cervical pedicle screw (CPS), vertebral artery (VA), and related anatomic structures in the Saudi population. METHODS: This retrospective single center study included 50 consecutive patients (35 males) with normal neck findings on computed tomography angiography performed for trauma or vascular evaluation between 2012 and 2014. Radiologic parameters were assessed and correlated with age, weight, height, and body mass index (BMI)...
April 2018: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
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