Identification of Swallowing Tasks From a Modified Barium Swallow Study That Optimize the Detection of Physiological Impairment

Hazelwood, R. Jordan; Armeson, Kent; Hill, Elizabeth G.; Bonilha, Heather Shaw; Martin‐Harris, Bonnie

doi:10.1044/2017_jslhr-s-16-0117

Cited by 42 publications

(36 citation statements)

References 48 publications

(56 reference statements)

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“…We scored each component on each performed swallow that was part of the standard protocol (Hazelwood et al, 2017). The worst score across all swallows was then determined as the overall impression score for each of the 17 components and used as the primary dependent variables.…”

Section: Methodsmentioning

confidence: 99%

Mapping acute lesion locations to physiological swallow impairments after stroke

Wilmskoetter

Bonilha

Martin‐Harris

et al. 2019

NeuroImage: Clinical

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Dysphagia is a common deficit after a stroke, and it is frequently associated with pneumonia, malnutrition, dehydration, and poor quality of life. It is not yet fully clear which brain regions are directly related to swallowing, and how lesions affect swallow physiology. This study aimed to assess the statistical relationship between acute stroke lesion locations and impairment of specific aspects of swallow physiology. We performed lesion symptom mapping with 68 retrospectively recruited, acute, first-ever ischemic stroke patients. Lesions were determined on diffusion weighted MRI scans. Post-stroke swallow physiology was determined using the Modified Barium Swallow Study Impairment Profile (MBSImP©™). The relationship between brain lesion location and 17 physiological aspects of swallowing were tested using voxel-based and region-based statistical associations corrected for multiple comparisons using permutation thresholding. We found that laryngeal elevation, anterior hyoid excursion, laryngeal vestibular closure, and pharyngeal residue were associated with lesioned voxels or regions of interests. All components showed distinct and overlapping lesion locations, mostly in the right hemisphere, and including cortical regions (inferior frontal gyrus, pre- and postcentral gyrus, supramarginal gyrus, angular gyrus, superior temporal gyrus, insula), subcortical regions (thalamus, amygdala) and white matter tracts (superior longitudinal fasciculus, corona radiata, internal capsule, external capsule, ansa lenticularis, lenticular fasciculus). Our findings indicate that different aspects of post-stroke swallow physiology are associated with distinct lesion locations, primarily in the right hemisphere, and primarily including sensory-motor integration areas and their corresponding white matter tracts. Future studies are needed to expand on our findings and thus, support the development of a neuroanatomical model of post-stroke swallow physiology and treatment approaches targeting the neurophysiological underpinnings of swallowing post stroke.

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Section: Methodsmentioning

confidence: 99%

Mapping acute lesion locations to physiological swallow impairments after stroke

Wilmskoetter

Bonilha

Martin‐Harris

et al. 2019

NeuroImage: Clinical

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“…The videofluoroscopic swallowing studies (VFSS), also known as modified barium swallow study, is the gold standard test for dysphagia evaluation 11 – 14 . VFSS, unlike bedside clinical examination, enables the examiner to visualize oral, pharyngeal and upper esophageal structure and function during patient swallowing.…”

Section: Introductionmentioning

confidence: 99%

Automatic hyoid bone detection in fluoroscopic images using deep learning

Zhang

Coyle

Sejdić

2018

Sci Rep

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The displacement of the hyoid bone is one of the key components evaluated in the swallow study, as its motion during swallowing is related to overall swallowing integrity. In daily research settings, experts visually detect the hyoid bone in the video frames and manually plot hyoid bone position frame by frame. This study aims to develop an automatic method to localize the location of the hyoid bone in the video sequence. To automatically detect the location of the hyoid bone in a frame, we proposed a single shot multibox detector, a deep convolutional neural network, which is employed to detect and classify the location of the hyoid bone. We also evaluated the performance of two other state-of-art detection methods for comparison. The experimental results clearly showed that the single shot multibox detector can detect the hyoid bone with an average precision of 89.14% and outperform other auto-detection algorithms. We conclude that this automatic hyoid bone tracking system is accurate enough to be widely applied as a pre-processing step for image processing in dysphagia research, as well as a promising development that may be useful in the diagnosis of dysphagia.

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“…Meal dysphagia is influenced by a decreased food bolus-forming ability [ 41 ]. Insufficient food-bolus formation and chewing owing to missing teeth, as well as deterioration in tongue movements, increase the risk of aspiration [ 41 , 42 , 43 ]. In Japan, older adults who live in nursing homes receive 24-h supervision by caregivers.…”

Section: Discussionmentioning

confidence: 99%

Characteristic Factors of Aspiration Pneumonia to Distinguish from Community-Acquired Pneumonia among Oldest-Old Patients in Primary-Care Settings of Japan

et al. 2020

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Background: Aspiration pneumonia (AsP), a phenotype of community-acquired pneumonia (CAP), is a common and problematic disease with symptomless recurrence and fatality in old adults. Characteristic factors for distinguishing AsP from CAP need to be determined to manage AsP. No such factorial markers in oldest-old adults, who are often seen in the primary-care settings, have yet been established. Methods: From the database of our Primary Care and General Practice Study, including the general backgrounds, clinical conditions and laboratory findings collected by primary care physicians and general practitioners, the records of 130 patients diagnosed with either AsP (n = 72) or CAP (n = 58) were extracted. Characteristic factors associated with the diagnosis of AsP were statistically compared between AsP and CAP. Results: The patients were older in the AsP group (median 90 years old) than in the CAP group (86 years old). The body temperature, heart rate, and diastolic blood pressure were lower in the patients with AsP than in those with CAP. Witnessed meal dysphagia by families and caregivers was reported only in AsP. Living in a nursing home, comorbidities of cerebral infarction and dementia (as positive factors) and hypertension (as a negative factor) were considered predictive to diagnose AsP in a stepwise logistic regression analysis. Conclusions: Among oldest-old adults in primary-care settings, living in a nursing home and the dysphagia risks are suggested to be characteristic factors for diagnosing AsP. Age and some relevant clinical information may help manage AsP and also be useful for families and caregivers.

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Identification of Swallowing Tasks From a Modified Barium Swallow Study That Optimize the Detection of Physiological Impairment

Cited by 42 publications

References 48 publications

Mapping acute lesion locations to physiological swallow impairments after stroke

Mapping acute lesion locations to physiological swallow impairments after stroke

Automatic hyoid bone detection in fluoroscopic images using deep learning

Characteristic Factors of Aspiration Pneumonia to Distinguish from Community-Acquired Pneumonia among Oldest-Old Patients in Primary-Care Settings of Japan

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