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MRI swallowing

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https://www.readbyqxmd.com/read/29758228/differences-in-swallow-physiology-in-patients-with-left-and-right-hemispheric-strokes
#1
Janina Wilmskoetter, Bonnie Martin-Harris, William G Pearson, Leonardo Bonilha, Jordan J Elm, Janet Horn, Heather S Bonilha
BACKGROUND: We sought to determine the impact of lesion lateralization and lesion volume on swallow impairment on group-level by comparing patients with left and right hemisphere strokes and on patient-level by analyzing patients individually. METHODS: We performed a retrospective, observational, cross-sectional study of 46 patients with unilateral (22 left, 24 right), acute, first-ever, ischemic strokes who received a diffusion weighted MRI (DW-MRI) and modified barium swallow study (MBSS) during their acute hospital stay...
May 11, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29748208/relationship-between-cough-associated-changes-in-csf-flow-and-disease-severity-in-chiari-i-malformation-an-exploratory-study-using-real-time-mri
#2
A F Bezuidenhout, D Khatami, C B Heilman, E M Kasper, S Patz, N Madan, Y Zhao, R A Bhadelia
BACKGROUND AND PURPOSE: Currently no quantitative objective test exists to determine disease severity in a patient with Chiari I malformation. Our aim was to correlate disease severity in symptomatic patients with Chiari I malformation with cough-associated changes in CSF flow as measured with real-time MR imaging. MATERIALS AND METHODS: Thirteen symptomatic patients with Chiari I malformation (tonsillar herniation of ≥5 mm) were prospectively studied. A real-time, flow-sensitized pencil-beam MR imaging scan was used to measure CSF stroke volume during rest and immediately following coughing and relaxation periods (total scan time, 90 seconds)...
May 10, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29734193/spontaneous-resolution-of-chiari-1-associated-syringomyelia-a-report-of-two-cases
#3
R Ramnarayan, C V Shankar Ganesh, Ramesh Kumar
BACKGROUND: Traditional teaching is that Chiari 1 malformations with syrinx should be operated as soon as possible. We present 2 cases of a radiologically proven Chiari 1 malformation with syrinx which were treated nonoperatively and improved radiologically. METHODS: Two children with an MRI-proven Chiari 1 malformations were followed up nonoperatively for 7 years (2010-2017). One was a boy aged 8 years and the other a girl aged 9 years at first presentation. Their parents were not interested in a surgical option and so it was decided to adopt a wait-and-watch policy...
May 7, 2018: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29706684/strain-map-of-the-tongue-in-normal-and-als-speech-patterns-from-tagged-and-diffusion-mri
#4
Fangxu Xing, Jerry L Prince, Maureen Stone, Timothy G Reese, Nazem Atassi, Van J Wedeen, Georges El Fakhri, Jonghye Woo
Amyotrophic Lateral Sclerosis (ALS) is a neurological disease that causes death of neurons controlling muscle movements. Loss of speech and swallowing functions is a major impact due to degeneration of the tongue muscles. In speech studies using magnetic resonance (MR) techniques, diffusion tensor imaging (DTI) is used to capture internal tongue muscle fiber structures in three-dimensions (3D) in a non-invasive manner. Tagged magnetic resonance images (tMRI) are used to record tongue motion during speech. In this work, we aim to combine information obtained with both MR imaging techniques to compare the functionality characteristics of the tongue between normal and ALS subjects...
February 2018: Proceedings of SPIE
https://www.readbyqxmd.com/read/29614554/-effect-of-foam-sclerotherapy-for-the-treatment-of-oropharyngeal-venous-malformation
#5
C Q Niu, H Jiang, S Y Zhou, G Shen, H B Li, J Zhang
Objective: To evaluate the safety and efficacy of foam sclerotherapy with polidocanol for the treatment of venous malformation in the oropharynx. Methods: The clinical data of 21 children with venous malformation in the oropharynx treated by foam sclerotherapy were retrospectively analyzed. There were 10 males and 11 females, ranging in age from 1 month to 13 years, with a median age of 2.3 years. MRI was performed in all children, and the diagnosis was further confirmed by radiography. After general anesthesia, the oropharynx was exposed by opening device...
March 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29605125/mri-artefact-in-the-rectum-caused-by-ingested-orthodontic-brackets
#6
M M Almuqbel, G J Leeper, J F Petelo, T J Page, T R Melzer
Magnetic susceptibility artefacts, caused by metallic objects, present a challenge in magnetic resonance imaging (MRI). In this case, MRI showed metal-induced artefact in the rectum of a 14-year-old girl who presented with pain in the coccyx after a snowboarding accident. Previous radiographs showed no evidence of metal in the area. After the identification of the artefact and upon discussion with the patient, she disclosed that two orthodontic brackets had been swallowed two days prior to the MRI examination, likely the source of artefact...
May 2018: Radiography
https://www.readbyqxmd.com/read/29594216/a-predictive-model-for-residual-disease-after-chemo-radiotherapy-in-oropharyngeal-carcinoma-combined-radiological-and-clinical-evaluation-of-tumor-response
#7
Zeno A R Gouw, Bas Jasperse, Jan-Jakob Sonke, Wilma D Heemsbergen, Arash Navran, Olga Hamming-Vrieze, Jan Paul de Boer, Michiel W M van den Brekel, Abrahim Al-Mamgani
Background and purpose: Early detection of Residual disease (RD) is vital for salvage possibilities after (chemo) radiatiotherapy for oropharyngeal carcinoma (OPC). We standardized clinical investigation to test its added value to MRI response evaluation and investigated the benefit of FDG-PET/CT. Materials and methods: Radiological response evaluation using Ojiri-score was done for 234 patients with OPC, using MRI 12 weeks after (chemo) radiotherapy between 2010 and 2014...
October 2017: Clinical and Translational Radiation Oncology
https://www.readbyqxmd.com/read/29533534/craniofacial-structures-development-in-prenatal-period-an-mri-study
#8
G Begnoni, G Serrao, F Musto, G Pellegrini, F M Triulzi, C Dellavia
INTRODUCTION: The development of skeletal structures (cranial base, upper and lower) and upper airways spaces (oropharyngeal and nasopharyngeal) of the skull has always been an issue of great interest in orthodontics. Foetal MRI images obtained as screening exam during pregnancy can help to understand the development of these structures using a sample cephalometric analysis. MATERIAL AND METHODS: A total of 28 MRI images in sagittal section of foetuses from 20th to 32th weeks of gestation were obtained to dispel doubts about the presence of skeletal malformations...
May 2018: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/29478192/neural-mechanisms-of-swallowing-dysfunction-and-apraxia-of-speech-in-acute-stroke
#9
Lydia A Trupe, Rachel W Mulheren, Donna Tippett, Argye E Hillis, Marlís González-Fernández
Speech and swallowing utilize overlapping anatomy and are thus inherently related processes. We sought to identify common neural mechanisms between risk of swallowing dysfunction and apraxia of speech (AOS). This was a retrospective analysis using data from a prospectively collected cohort. Left hemisphere stroke patients (68 subjects) tested with the Apraxia Battery for Adults II, a swallow screen, and MRI were included in the study. Main outcome measure was the presence of AOS or aspiration risk after stroke...
February 24, 2018: Dysphagia
https://www.readbyqxmd.com/read/29362286/-bilateral-internal-carotid-artery-dissection-caused-by-elongated-styloid-processes-a-case-report
#10
Toru Takino, Satoshi Shibuma, Yu Kanemaru, Koji Okamura, Aki Oshima, Manami Tazawa, Takeo Nashimoto, Naoto Tsuchiya, Junichi Yoshimura, Kiminori Netsu, Takafumi Saito
We report a case of bilateral internal carotid artery(ICA)dissection associated with bilateral elongated styloid processes(ESPs). A 46-year-old man presented with transient aphasia and left visual disturbance at a business meeting. He complained of a foreign body sensation in his throat during swallowing for two years. Magnetic resonance imaging(MRI)demonstrated fresh small infarcts in the left corona radiata. Magnetic resonance angiography(MRA)revealed string signs bilaterally in the cervical ICAs. The patient was diagnosed with bilateral idiopathic ICA dissection and was treated with ozagrel and clopidogrel...
January 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29361502/dentures-wearing-reduce-motion-artifacts-related-to-tongue-movement-in-magnetic-resonance-imaging
#11
Asako Suzuki, Masayasu Ito, Yasuhiko Kawai
PURPOSE: Tongue movement with unstable swallowing cause artifacts on magnetic resonance imaging (MRI). This may be associated with loss of occlusal support. This study aimed to clarify whether motion artifacts can be mitigated by denture wearing during MRI examination in patients without occlusal support, and whether denture wearing affect tongue stability, form, and position were also evaluated. METHODS: Ten subjects without occlusal support (6 male, 4 female; mean age 73...
January 17, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29358615/neuromyopathy-with-congenital-cataracts-and-glaucoma-a-distinct-syndrome-caused-by-polg-variants
#12
Claudia Castiglioni, Fabiana Fattori, Bjarne Udd, Maria de Los Angeles Avaria, Bernardita Suarez, Adele D'Amico, Alessandro Malandrini, Rosalba Carrozzo, Daniela Verrigni, Enrico Bertini, Giorgio Tasca
We identified three non-related patients manifesting a childhood-onset progressive neuromyopathy with congenital cataracts, delayed walking, distal weakness and wasting, glaucoma and swallowing difficulties. Electrophysiology and nerve biopsies showed a mixed axonal and demyelinating neuropathy, while muscle biopsy disclosed both neurogenic and myopathic changes with ragged red fibers, and muscle MRI showed consistent features across patients, with a peculiar concentric disto-proximal gradient of fatty replacement...
March 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29354589/collet-sicard-syndrome-with-hypoglossal-nerve-schwannoma-a-case-report
#13
Seung Hun Lee, Eun Shin Lee, Chul Ho Yoon, Heesuk Shin, Chang Han Lee
Collet-Sicard syndrome is a rare syndrome that involves paralysis of 9th to 12th cranial nerves. We report an uncommon case of schwannoma of the hypoglossal nerve in a 39-year-old woman presented with slurred speech, hoarse voice, and swallowing difficulty. Physical examination revealed decreased gag reflex on the right side, decreased laryngeal elevation, tongue deviation to the right side, and weakness of right trapezius muscle. MRI revealed a mass lesion in the right parapharyngeal space below the jugular foramen...
December 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29354586/bulbar-myasthenia-gravis-superimposed-in-a-medullary-infarction-diagnosed-by-a-fiberoptic-endoscopic-evaluation-of-swallowing-with-simultaneous-tensilon-application
#14
Sung-Jun Kim, Geun-Young Park, Yong-Min Choi, Dong-Gyun Sohn, Sae-Rom Kang, Sun Im
In the elderly, myasthenia gravis (MG) can present with bulbar symptoms, which can be clinically difficult to diagnose from other neurological comorbid conditions. We describe a case of a 75-year-old man who had been previously diagnosed with dysphagia associated with medullary infarction but exhibited aggravation of the dysphagia later on due to a superimposed development of bulbar MG. After recovering from his initial swallowing difficulties, the patient suddenly developed ptosis, drooling, and generalized weakness with aggravated dysphagia...
December 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29311314/influence-of-anterior-midcingulate-cortex-on-drinking-behavior-during-thirst-and-following-satiation
#15
Pascal Saker, Michael J Farrell, Gary F Egan, Michael J McKinley, Derek A Denton
In humans, activity in the anterior midcingulate cortex (aMCC) is associated with both subjective thirst and swallowing. This region is therefore likely to play a prominent role in the regulation of drinking in response to dehydration. Using functional MRI, we investigated this possibility during a period of "drinking behavior" represented by a conjunction of preswallow and swallowing events. These events were examined in the context of a thirsty condition and an "oversated" condition, the latter induced by compliant ingestion of excess fluid...
January 23, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29229323/mri-based-assessment-of-3d-intrafractional-motion-of-head-and-neck-cancer-for-radiation-therapy
#16
Oliver J Gurney-Champion, Dualta McQuaid, Alex Dunlop, Kee H Wong, Liam C Welsh, Angela M Riddell, Dow-Mu Koh, Uwe Oelfke, Martin O Leach, Christopher M Nutting, Shreerang A Bhide, Kevin J Harrington, Rafal Panek, Kate L Newbold
PURPOSE: To determine the 3-dimensional (3D) intrafractional motion of head and neck squamous cell carcinoma (HNSCC). METHODS AND MATERIALS: Dynamic contrast-enhanced magnetic resonance images from 56 patients with HNSCC in the treatment position were analyzed. Dynamic contrast-enhanced magnetic resonance imaging consisted of 3D images acquired every 2.9 seconds for 4 minutes 50 seconds. Intrafractional tumor motion was studied in the 3 minutes 43 seconds of images obtained after initial contrast enhancement...
February 1, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29202647/swallow-presyncope-in-an-athletic-patient-caused-by-third-degree-atrioventricular-block
#17
Axel Van Damme, Tine De Backer, Philippe Vanderheeren
Introduction Swallow syncope is a neurally mediated syncope. Multiple causes have been described in literature. A rare cause is arrhythmias. Only a limited amount of cases present the association of swallow syncope and third degree AV-block. Case presentation A 39-year-old man presented with episodes of presyncope while eating. Further medical history, physical examination, resting 12-lead ECG, cyclo-ergometry, transthoracic echocardiography and MRI of the heart were normal. 24 h Holter monitoring demonstrated high-grade third-degree atrioventricular (AV) block...
December 5, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/29181146/metastatic-prostate-adenocarcinoma-to-intradural-foramen-magnum
#18
Halil Olgun Peker, Nural Cafer Celik, Ulas Cikla, Mustafa K Baskaya
Intradural metastatic tumors are rarely reported in foramen magnum (FM), including cases of melanoma, pituitary carcinoma, thyroid carcinoma, and prostate carcinoma metastases. We report a 68-year-old male who presented with right-sided headache, progressive swallowing difficulty requiring gastrostomy tube and hoarseness over the course of 1 year. Images revealed a heterogeneous, contrast-enhancing lesion in the FM that compressed the anterior aspect of the medulla and upper spinal cord. Although metastatic tumor was considered in differential diagnosis, presumptive diagnosis was FM meningioma due to lack of bone destruction or sclerosis on CT and T2W isointense and T1W hypointense appearance on MRI...
November 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29153397/embolic-stroke-due-to-carotidynia-potentially-associated-with-moving-carotid-artery-caused-by-swallowing
#19
Yoshitaka Yamaguchi, Mikito Hayakawa, Naoto Kinoshita, Chiaki Yokota, Toshiya Ishihara, Kazunori Toyoda
A 63-year-old woman with end-stage renal disease on maintenance hemodialysis discontinued her medication for rheumatoid arthritis with prednisolone and azathioprine. One month later, she was admitted because of consciousness disturbance and right hemiparesis. Diffusion-weighted brain magnetic resonance imaging (MRI) revealed multiple hyperintensities in her left frontal and parietal lobes. She also developed high fever and left neck pain. Carotid ultrasonography showed calcified plaque with vessel wall swelling at the bifurcation of the left common carotid artery (LCCA) and surrounding hypoechoic soft tissue...
March 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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
#20
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...
January 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
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