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https://www.readbyqxmd.com/read/29128287/functional-evaluation-of-swallowing-in-patients-with-tongue-cancer-before-and-after-surgery-using-high-speed-continuous-magnetic-resonance-imaging-based-on-t2-weighted-sequences
#1
Shun Nishimura, Tatsurou Tanaka, Masafumi Oda, Manabu Habu, Masaaki Kodama, Daigo Yoshiga, Kenji Osawa, Shinya Kokuryo, Ikuya Miyamoto, Shinji Kito, Nao Wakasugi-Sato, Shinobu Matsumoto-Takeda, Takaaki Joujima, Yuichi Miyamura, Suzuro Hitomi, Noriaki Yamamoto, Masataka Uehara, Masaaki Sasaguri, Kentaro Ono, Izumi Yoshioka, Kazuhiro Tominaga, Yasuhiro Morimoto
OBJECTIVES: The aim of this study was to determine the usefulness of evaluating the function of swallowing before and after surgery in patients with tongue cancer by using T2-weighted sequences of high-speed continuous magnetic resonance imaging (HSCMRI). STUDY DESIGN: The imaging findings and related parameters on HSCMRI along with those on routine MRI examinations before and after surgery were examined in 19 patients with tongue cancer. In addition, changes in various parameters during 1 year after surgery were evaluated in 10 patients...
October 9, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29100254/volumetric-assessment-of-swallowing-muscles-a%C3%A2-comparison-of-ct-and-mri-segmentation
#2
Kim Barbara Sporns, Uta Hanning, Rene Schmidt, Paul Muhle, Rainer Wirth, Sebastian Zimmer, Rainer Dziewas, Sonja Suntrup-Krueger, Peter Bernhard Sporns, Walter Heindel, Wolfram Schwindt
Purpose Recent retrospective studies have proposed a high correlation between atrophy of swallowing muscles, age, severity of dysphagia and aspiration status based on computed tomography (CT). However, ionizing radiation poses an ethical barrier to research in prospective non-patient populations. Hence, there is a need to prove the efficacy of techniques that rely on noninvasive methods and produce high-resolution soft tissue images such as magnetic resonance imaging (MRI). The objective of this study was therefore to compare the segmentation results of swallowing muscles using CT and MRI...
November 3, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/29075903/the-tethered-effect-of-the-arachnoid-in-vago-glossopharyngeal-neuralgia-a-real-associated-alternative-mechanism
#3
Florian Bernard, Philippe Mercier, Marc Sindou
Vago-glossopharyngeal neuralgia (VGPN) is a rarely seen disease when compared to trigeminal neuralgia. When the pain is resistant to medical therapy, microvascular decompression can be performed if a vascular conflict is suspected on magnetic resonance imaging (MRI). In addition, arachnoid pathology may play a role in VGPN. We report two cases of VGPN caused by tethered arachnoid, associated with a vascular contact in which pain was reduced by freeing rootlets from arachnoid compression. We report two cases relating to 50-year-old and 30-year-old men with a history of electric shooting pain triggered by swallowing in the right pharyngeal and auricular regions...
October 26, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29068974/an-atypical-lipomatous-tumor-mimicking-a-giant-fibrovascular-polyp-of-the-hypopharynx-a-case-report
#4
Khrystyna E Ioanidis, Stephanie Danielle MacNeil, Keng Yeow Tay, Bret Wehrli
RATIONALE: Giant fibrovascular polyps (GFVPs) found in the hypopharynx are exceedingly rare. These are benign tumors which are identified by CT or MRI and usually treated based on symptoms. Even more rarely, pathology may identify one of these masses as an atypical lipomatous tumor (ALT). This paper will present a case of an ALT of the hypopharynx that was originally classified as a GFVP, highlighting the difficulty in distinguishing between them and the importance of making the correct diagnosis...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29055454/spontaneous-yawning-in-patients-with-multiple-sclerosis-a-polygraphic-study
#5
Hülya Uluğut Erkoyun, Yeşim Beckmann, Nazlı Gamze Bülbül, Tülay Kurt İncesu, Nevin Gürgör Kanat, Cumhur Ertekin
BACKGROUND: Patients with multiple sclerosis (MS) suffer from the repetitive yawning and sleep problems. Yawning is observed in MS and other central nervous system disorders and yawning and swallowing may be controlled by the network of the brain stem. Therefore it is important to investigate the MS patients with various clinical and radiological locations in order to understand the role of brainstem on the yawning mechanisms. One hour polygraphic recording would be crucial method for this purpose, because it is easy to observe spontaneous yawning (SY) and spontaneous swallowing (SS) together with their electrophysiologic counterparts...
October 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29037920/tongue-movement-during-articulation-in-magnetic-resonance-imaging-findings-in-20-healthy-volunteers-and-a-patient-with-anterior-floor-of-the-mouth-squamous-cell-carcinoma
#6
Katinka Kansy, Jürgen Hoffmann, Martin Bendszus, Sabine Heiland, Johannes Krisam, Matthias Wohlfarth, Nicole Mistele, Anne Geschwinder, Johann Gradl
PURPOSE: Combined ablative and reconstructive oral maxillofacial surgery involves a multitude of anatomical and functional structures for speech and swallowing. Although there are a few methods to objectively examine swallowing function, this is not true for speech. We describe the development of an objective visualization and measurement tool for magnetic resonance imaging (MRI) to evaluate speech and its first application in a patient. MATERIAL AND METHODS: A total of 20 healthy patients and one patient with squamous cell carcinoma localized in the anterior floor of the mouth were included in the study...
September 19, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28960586/use-of-dynamic-mri-during-swallowing-to-assess-carotid-artery-invasion-by-neck-metastasis
#7
Shun-Ichi Chitose, Takeharu Ono, Buichiro Shin, Kiminori Sato, Hirohito Umeno
BACKGROUND: The effectiveness of dynamic MRI in evaluating the relationship between metastatic lymph nodes and the carotid artery was investigated. METHODS: Thirty-two patients with metastatic lymph nodes, possibly adherent to the carotid artery, were evaluated with dynamic MRI before surgery. Consecutive axial and oblique images were obtained during swallowing. The displacement rate of the target carotid artery to the contralateral carotid artery and the low-intensity stripe between the metastatic lymph nodes and the carotid artery wall were compared with the surgical findings...
September 27, 2017: Head & Neck
https://www.readbyqxmd.com/read/28930813/temporal-changes-in-prescription-of-neuropharmacologic-drugs-and-utilization-of-resources-related-to-neurologic-morbidity-in-mechanically-ventilated-children-with-bronchiolitis
#8
Steven L Shein, Katherine Slain, Deanne Wilson-Costello, Bryan McKee, Alexandre T Rotta
OBJECTIVES: Critically ill children with bronchiolitis may require neuropharmacologic medications and support for neuro-functional sequelae, but current practices are not well described. We aimed to describe recent trends in neuropharmacology and utilization of neuro-rehabilitation resources in mechanically ventilated children with bronchiolitis. DESIGN: Analysis of the multicenter Pediatric Health Information System database. SETTING: Forty-seven U...
September 19, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28886900/clinical-and-imaging-differences-between-neonates-and-children-with-pyriform-sinus-fistula-which-is-preferred-for-diagnosis-computed-tomography-or-barium-esophagography
#9
Jing Pan, Yan Zou, Le Li, Tian-You Yang, Ji-Liang Yang, Chao Hu
PURPOSE: Pyriform sinus fistula (PSF) is very rare. It is difficult to make an accurate diagnosis preoperatively. The aim of this study is to summarize the characteristics of clinical and radiologic presentations in neonates and children with PSF and to assess which examination is more helpful for diagnosis. METHODS: A retrospective review was performed in 29 patients with PSF at a single center from January 2013 to September 2016. The clinical presentation, computed tomography (CT) scan/magnetic resonance imaging (MRI), and barium esophagogram were evaluated between neonates and children...
November 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28830896/patient-with-niemann-pick-disease-type-c-over-20-years-follow-up
#10
Kazuo Abe, Norio Sakai
We report a 37-year-old woman with Niemann-Pick disease type C (NPC) 1. At the age of 8 years, she presented slow running followed by both fingers dystonia at the age of 10 years. At the age of 16 years, she developed declined scholastic achievement. On her first visit at the age of 17 years, she showed dystonia, ataxic gait and vertical supranuclear gaze palsy. We suspected it was NPC. She presented atrophies in the frontal lobes, brainstem and cerebellum in a brain MRI. She presented hepatomegalies and splenomegalies in an abdominal CT...
August 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28815863/decoding-fmri-events-in-sensorimotor-motor-network-using-sparse-paradigm-free-mapping-and-activation-likelihood-estimates
#11
Francisca M Tan, César Caballero-Gaudes, Karen J Mullinger, Siu-Yeung Cho, Yaping Zhang, Ian L Dryden, Susan T Francis, Penny A Gowland
Most functional MRI (fMRI) studies map task-driven brain activity using a block or event-related paradigm. Sparse paradigm free mapping (SPFM) can detect the onset and spatial distribution of BOLD events in the brain without prior timing information, but relating the detected events to brain function remains a challenge. In this study, we developed a decoding method for SPFM using a coordinate-based meta-analysis method of activation likelihood estimation (ALE). We defined meta-maps of statistically significant ALE values that correspond to types of events and calculated a summation overlap between the normalized meta-maps and SPFM maps...
November 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28798779/one-swallow-does-not-a-summer-make-but-many-swallows-do-accumulating-clinical-evidence-for-nearly-eliminated-peri-procedural-and-30-day-complications-with-mesh-covered-stents-transforms-the-carotid-revascularisation-field
#12
REVIEW
Piotr Musiałek, L Nelson Hopkins, Adnan H Siddiqui
Atherosclerotic carotid artery stenosis (CS) continues to be a common cause of acute ischaemic stroke. Optimised medical therapy (OMT), the first-line treatment modality in CS, may reduce or delay - but it does not abolish - CS-related strokes. As per current AHA/ASA and ESC/ESVS/ESO guidelines, carotid artery stenting (CAS) is a less-invasive alternative to carotid endarterectomy (CEA) for CS revascularisation in primary and secondary stroke prevention. Ten-year follow-up from the CREST trial in patients with symptomatic and asymptomatic CS confirmed equipoise of CAS and CEA in the primary endpoint...
2017: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/28748320/the-relationship-between-lesion-localization-and-dysphagia-in-acute-stroke
#13
Stephanie K Daniels, Shweta Pathak, Shalini V Mukhi, Carol B Stach, Robert O Morgan, Jane A Anderson
Factors that can facilitate early identification of individuals at risk of dysphagia such as stroke location are potentially of great benefit. The aim of this study was to examine the role of hemisphere and lesion location in assessing dysphagia pattern and airway invasion as identified through the use of validated, standardized interpretation measures for the videofluoroscopic swallowing study. Consecutive patients (N = 80) presenting with stroke symptoms who had a first-time acute ischemic stroke confirmed on diffusion-weighted magnetic resonance imaging (DW-MRI) scan participated...
December 2017: Dysphagia
https://www.readbyqxmd.com/read/28729039/congenital-myopathy-due-to-myosin-heavy-chain-2-mutation-presenting-as-chronic-aspiration-pneumonia-in-infancy
#14
R Tsabari, H Daum, E Kerem, Y Fellig, T Dor
A 7-week-old infant presented with persistent noisy breathing and aspirations during swallowing. Neurological examination and brain MRI were normal. His 12-year-old brother underwent pneumonectomy at the age of 10 years due to recurrent aspirations leading to severe lung damage. The older brother developed subsequently ophthalmoplegia and nystagmus along with mild weakness of the neck flexors and proximal muscles. Exome analysis revealed homozygosity for a novel truncating mutation p.G800fs27* in the Myosin Heavy Chain 2 (MYH2) gene in both brothers, while parents and an unaffected sibling were heterozygous...
June 27, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28705819/mri-of-the-swallow-tail-sign-a-useful-marker-in-the-diagnosis-of-lewy-body-dementia
#15
S Shams, D Fällmar, S Schwarz, L-O Wahlund, D van Westen, O Hansson, E-M Larsson, S Haller
BACKGROUND AND PURPOSE: There are, to date, no MR imaging diagnostic markers for Lewy body dementia. Nigrosome 1, containing dopaminergic cells, in the substantia nigra pars compacta is hyperintense on SWI and has been called the swallow tail sign, disappearing with Parkinson disease. We aimed to study the swallow tail sign and its clinical applicability in Lewy body dementia and hypothesized that the sign would be likewise applicable in Lewy body dementia. MATERIALS AND METHODS: This was a retrospective cross-sectional multicenter study including 97 patients (mean age, 65 ± 10 years; 46% women), consisting of the following: controls (n = 21) and those with Lewy body dementia (n = 19), Alzheimer disease (n = 20), frontotemporal lobe dementia (n = 20), and mild cognitive impairment (n = 17)...
July 13, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28703117/early-diagnostics-of-temporomandibular-joint-structural-elements-injures-caused-by-traumatic-mandibular-bone-fractures
#16
Kh R Pohranychna, A R Stasyshyn, U D Matolych
A rapidly increasing number of mandibular condylar fractures and some complications related to injuries of temporomandibular elements make this study important. Intra-articular disorders lead to secondary pathological findings such as osteoarthritis, deforming osteoarthrosis, and temporomandibular joint ankylosis that limits mouth opening, mastication, swallowing, breathing, and decreased/lost working capacity or disability. Early diagnosis of intra-articular disorders can prevent from long-lasting functional complications caused by temporomandibular joint injuries...
June 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28652614/wireless-mri-colonoscopy-for-sensitive-imaging-of-vascular-walls
#17
Xianchun Zeng, Liangliang Chen, Chuan Wang, Jian Wang, Chunqi Qian
A Wireless Amplified NMR Detector (WAND) with cylindrical symmetry has been fabricated and non-surgically inserted into a rodent lower digestive track to improve the imaging quality of deep-lying vessels inside the abdominal cavity. This symmetric detector has a compact design using two end-rings and two vertical legs to create two orthogonal resonance modes. Based on the principle of parametric amplification, the detector can harvest wireless pumping power with its end-rings and amplify Magnetic Resonance signals induced on its vertical legs...
June 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28611728/are-movement-artifacts-in-magnetic-resonance-imaging-a-real-problem-a-narrative-review
#18
REVIEW
Inger Havsteen, Anders Ohlhues, Kristoffer H Madsen, Janus Damm Nybing, Hanne Christensen, Anders Christensen
Movement artifacts compromise image quality and may interfere with interpretation, especially in magnetic resonance imaging (MRI) applications with low signal-to-noise ratio such as functional MRI or diffusion tensor imaging, and when imaging small lesions. High image resolution has high sensitivity to motion artifacts and often prolongs scan time that again aggravates movement artifacts. During the scan fast imaging techniques and sequences, optimal receiver coils, careful patient positioning, and instruction may minimize movement artifacts...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28557310/larynx-motion-considerations-in-partial-larynx-volumetric-modulated-arc-therapy-for-early-glottic-cancer
#19
Houda Bahig, Phuc Félix Nguyen-Tan, Édith Filion, David Roberge, Pensavan Thanomsack, Jacques de Guise, Danis Blais, Robert Doucet, Laurent Létourneau-Guillon, Louise Lambert
INTRODUCTION: To assess laryngeal motion in early glottic cancer in order to determine safe margins for partial larynx volumetric modulated arc therapy (PL-VMAT), and to quantify dosimetric advantages of PL-VMAT. METHODS: This prospective study included T1-2N0 glottic cancers treated with whole larynx VMAT (WL-VMAT). Pre- and mid-treatment 4D-computed tomography (4D-CT) and dynamic magnetic resonance imaging (MRI) allowed for assessment of larynx swallowing and respiratory motion...
May 30, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28534125/salivary-glands-abnormalities-in-oculo-auriculo-vertebral-spectrum
#20
Davide Brotto, Renzo Manara, Stefania Vio, Sara Ghiselli, Elena Cantone, Rodica Mardari, Irene Toldo, Valentina Stritoni, Alessandro Castiglione, Elisa Lovo, Patrizia Trevisi, Roberto Bovo, Alessandro Martini
BACKGROUND: Feeding and swallowing impairment are present in up to 80% of oculo-auriculo-vertebral spectrum (OAVS) patients. Salivary gland abnormalities have been reported in OAVS patients but their rate, features, and relationship with phenotype severity have yet to be defined. MATERIAL AND METHODS: Parotid and submandibular salivary gland hypo/aplasia was evaluated on head MRI of 25 OAVS patients (16 with severe phenotype, Goldenhar syndrome) and 11 controls...
May 22, 2017: Clinical Oral Investigations
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