Unified Brain MR-Ultrasound Synthesis using Multi-Modal Hierarchical Representations
Med Image Comput Comput Assist Interv. 2023 Oct 13;2023:448-458. doi: 10.1007/978-3-031-43999-5_43.ABSTRACTWe introduce MHVAE, a deep hierarchical variational autoencoder (VAE) that synthesizes missing images from various modalities. Extending multi-modal VAEs with a hierarchical latent structure, we introduce a probabilistic formulation for fusing multi-modal images in a common latent representation while having the flexibility to handle incomplete image sets as input. Moreover, adversarial learning is employed to generate sharper images. Extensive experiments are performed on the challenging problem of joint intra-operat...
Source: MICCAI International Conference on Medical Image Computing and Computer-Assisted Intervention - April 24, 2024 Category: Radiology Authors: Reuben Dorent Nazim Haouchine Fryderyk Kogl Samuel Joutard Parikshit Juvekar Erickson Torio Alexandra Golby Sebastien Ourselin Sarah Frisken Tom Vercauteren Tina Kapur William M Wells Source Type: research
Clinicopathologic Conference Case 5: Swelling of the maxilla in a young child
A nine-year-old male presented to his dentist with the chief complaint that he had noticed “a bump in his mouth a few weeks ago.” The patient reported no pain with eating. His medical history was unremarkable, except for a broken arm a few years prior. The patient is adopted and the family has no medical records from his birth. Extra-oral exam revealed no diagnostic abnormalities and the patient was awake, alert and comfortable with the examination. Upon intraoral physical exam, an expansile fullness of the anterior maxilla was noted (Figure 1). (Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics)
Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - April 24, 2024 Category: ENT & OMF Authors: Daria Vasilyeva, Scott M. Peters, Patricia E. Miller, Rachelle A. Wolk Source Type: research
Clinical Pathologic Conference Case #6: Oral and Cutaneous Findings in a 14-year-old Female
A 14-year-old female with a history of Kawasaki disease was referred to a university oral medicine clinic by her orthodontist due to swollen, hemorrhagic gingiva and tooth mobility. Scurvy was suspected by the patient's nurse practitioner and confirmed by a measure of ascorbic acid in plasma of less than 5 μmol per liter (0.1 mg per deciliter; reference range, 23 to 114 μmol per liter [0.4 to 2.0 mg per deciliter]). Laboratory testing also revealed vitamin D deficiency with a measured 25-hydroxyvitamin D level of less than 23.3 ng per milliliter (50 nmol per liter; reference range 32.0-100.0 ng per milliliter). (Source: ...
Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - April 24, 2024 Category: ENT & OMF Authors: Sarah Glass, Mark Mintline Source Type: research
Clinicopathologic Conference Case 3: Palatal Swelling with Sinus Floor Erosion
A 52-year-old male presented to his oral surgeon for evaluation of a right palatal mass that had been present for one year. Clinical symptoms included swelling, and no pain was reported. His past medical history was non-contributory. Intraoral examination revealed a smooth-surfaced mass with a slightly bluish hue, measuring approximately 3.0 cm in its greatest dimension (Figure 1). No surface ulceration was observed. Radiographic evaluation showed erosion of the nasal floor and maxillary sinus in the corresponding area. (Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics)
Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - April 24, 2024 Category: ENT & OMF Authors: Saja A. Alramadhan, Jenna Marcinczyk Source Type: research
Clinical Pathologic Conference Case 1: A unilocular radiolucency of the right mandible
An 18-year-old black male presented to the oral surgery resident clinic for evaluation of a radiolucent lesion of the right posterior mandible detected on routine panoramic imaging at a local pediatric dental clinic. The patient was otherwise healthy with no significant past medical or social history. The patient's mother vaguely recalled that “something” was seen several years ago on a radiograph of the area, but a search of dental records found no images for comparison.On extraoral exam, the patient appeared symmetric without evidence of facial fullness or swelling. (Source: Oral Surgery, Oral Medicine, Oral Patholog...
Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - April 24, 2024 Category: ENT & OMF Authors: Dennis Shem, John R. Kalmar Source Type: research
Clinical Pathology Conference: Case 4: An exophytic gingival mass of the right anterior mandible
An 83-year-old male presented to a community oral maxillofacial surgeon with a tender, pink, pedunculated exophytic tumor measuring 2 × 1.5 cm involving the right anterior mandible adjacent to tooth #27 (Figure 1A). His medical history was significant for hypertension, congestive heart failure, atrial fibrillation, and prostate cancer treated with radiation and androgen deprivation chemotherapy. The patient had been taking a miodarone, metoprolol, digoxin, rivaroxaban, furosemide, bicalutamide, and leuprorelin injections. (Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics)
Source: Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics - April 24, 2024 Category: ENT & OMF Authors: Safia Durab, Ida A. Varghese, Laith Mahmood, Nadarajah Vigneswaran Source Type: research
Prospective cohort study of long-term neurological outcomes in retired elite athletes: the Advanced BiomaRker, Advanced Imaging and Neurocognitive (BRAIN) Health Study protocol
Introduction
Although limited, recent research suggests that contact sport participation might have an adverse long-term effect on brain health. Further work is required to determine whether this includes an increased risk of neurodegenerative disease and/or subsequent changes in cognition and behaviour. The Advanced BiomaRker, Advanced Imaging and Neurocognitive Health Study will prospectively examine the neurological, psychiatric, psychological and general health of retired elite-level rugby union and association football/soccer players.
Methods and analysis
400 retired athletes will be recruited (200 rugby union and 20...
Source: BMJ Open - April 24, 2024 Category: General Medicine Authors: Zimmerman, K. A., Hain, J. A., Graham, N. S. N., Rooney, E. J., Lee, Y., Del-Giovane, M., Parker, T. D., Friedland, D., Cross, M. J., Kemp, S., Wilson, M. G., Sylvester, R. J., Sharp, D. J. Tags: Open access, Neurology Source Type: research
Inter-observer variation of head and foot point selection for subject height determination
This study demonstrated that factors such as the suspect's proximity to the camera and suspect's headwear affected the variability and range of marking, which has a direct correlation to the estimated height of the suspect. In general, when the region to be marked was larger, the variability was also larger. This study also demonstrates that marking errors were significantly reduced when discrete marking locations were present such as on a height scale. The average percentage difference of height was most notable, approximately 3%, when the suspect was wearing a hoodie and was at a position closest to the camera. The range...
Source: Journal of Forensic Sciences - April 23, 2024 Category: Forensic Medicine Authors: Eugene Liscio Jihwa Lim Source Type: research
Biomonitoring of volatile organic compounds and organophosphorus flame retardands in commercial aircrews after "fume and smell events"
Int J Hyg Environ Health. 2024 Apr 22;259:114381. doi: 10.1016/j.ijheh.2024.114381. Online ahead of print.ABSTRACTHealth risks to humans after "fume and smell events", short-term incidents on aircrafts that are accompanied by unpleasant odour or visible smoke, remain a subject of controversy. We assessed exposure to volatile organic compounds (VOC) and organophosphorus compounds (OPC) by biomonitoring in 375 aircrew members after self-reported "fume and smell events" and in 88 persons of the general population. A total of 20 parameters were analysed in blood and urine by gas chromatography and mass spectrometry. Median lev...
Source: International Journal of Hygiene and Environmental health - April 23, 2024 Category: Environmental Health Authors: Tobias Weiss Stephan Koslitz Christoph N öllenheidt Christoph Caumanns J örg Hedtmann Heiko U K äfferlein Thomas Br üning Source Type: research
Speech Audio Synthesis from Tagged MRI and Non-Negative Matrix Factorization via Plastic Transformer
Med Image Comput Comput Assist Interv. 2023 Oct;14226:435-445. doi: 10.1007/978-3-031-43990-2_41. Epub 2023 Oct 1.ABSTRACTThe tongue's intricate 3D structure, comprising localized functional units, plays a crucial role in the production of speech. When measured using tagged MRI, these functional units exhibit cohesive displacements and derived quantities that facilitate the complex process of speech production. Non-negative matrix factorization-based approaches have been shown to estimate the functional units through motion features, yielding a set of building blocks and a corresponding weighting map. Investigating the lin...
Source: MICCAI International Conference on Medical Image Computing and Computer-Assisted Intervention - April 23, 2024 Category: Radiology Authors: Xiaofeng Liu Fangxu Xing Maureen Stone Jiachen Zhuo Sidney Fels Jerry L Prince Georges El Fakhri Jonghye Woo Source Type: research
Inter-observer variation of head and foot point selection for subject height determination
This study demonstrated that factors such as the suspect's proximity to the camera and suspect's headwear affected the variability and range of marking, which has a direct correlation to the estimated height of the suspect. In general, when the region to be marked was larger, the variability was also larger. This study also demonstrates that marking errors were significantly reduced when discrete marking locations were present such as on a height scale. The average percentage difference of height was most notable, approximately 3%, when the suspect was wearing a hoodie and was at a position closest to the camera. The range...
Source: Journal of Forensic Sciences - April 23, 2024 Category: Forensic Medicine Authors: Eugene Liscio Jihwa Lim Source Type: research
Rehabilitation for adult patients undergoing extracorporeal membrane oxygenation
CONCLUSION: Current practice focuses on rehabilitative protocols that incorporate exercise routines with progressive intensity, greater emphasis on out-of-bed activities, and a multidisciplinary approach to patient mobilization.PMID:38651577 | DOI:10.1177/02676591231226289 (Source: Perfusion)
Source: Perfusion - April 23, 2024 Category: Cardiovascular & Thoracic Surgery Authors: Massimiliano Polastri Allaina Eden Justyna Swol Source Type: research
Biomonitoring of volatile organic compounds and organophosphorus flame retardands in commercial aircrews after "fume and smell events"
Int J Hyg Environ Health. 2024 Apr 22;259:114381. doi: 10.1016/j.ijheh.2024.114381. Online ahead of print.ABSTRACTHealth risks to humans after "fume and smell events", short-term incidents on aircrafts that are accompanied by unpleasant odour or visible smoke, remain a subject of controversy. We assessed exposure to volatile organic compounds (VOC) and organophosphorus compounds (OPC) by biomonitoring in 375 aircrew members after self-reported "fume and smell events" and in 88 persons of the general population. A total of 20 parameters were analysed in blood and urine by gas chromatography and mass spectrometry. Median lev...
Source: International Journal of Hygiene and Environmental health - April 23, 2024 Category: Environmental Health Authors: Tobias Weiss Stephan Koslitz Christoph N öllenheidt Christoph Caumanns J örg Hedtmann Heiko U K äfferlein Thomas Br üning Source Type: research
Establishing breath as a biomarker platform —take home messages from the Breath Biopsy Conference 2023
The annual Breath Biopsy Conference hosted by Owlstone Medical gathers together the leading experts, early career researchers, and physicians working with breath as a biomarker platform for clinical purposes. The current topics in breath research are discussed and presented, and an overarching topical theme is identified and discussed as part of an expert panel to close the conference. The profiling of normal breath composition and the establishment of standards for analyzing breath compared to background signal were two important topics that were major focuses of this conference, as well as important innovative progress t...
Source: Journal of Breath Research - April 23, 2024 Category: Respiratory Medicine Authors: Hsuan Chou, Lucy Godbeer and Madeleine L Ball Source Type: research
