Medicine
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Case Reports
Rare perivascular epithelial cell tumor of the colon 18F-FDG PET/CT imaging: A case report.
Neoplasms with perivascular epithelioid cell differentiation (PEComas) are mesenchymal tumors that rarely occur in the colon. Here, we report the occurrence of a malignant PEcoma in the colon using 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT). ⋯ Malignant perivascular epithelioid cell tumors originating in the colon are extremely rare, and our report suggests that PEComa should be considered as a differential diagnosis for 18F-FDG gastrointestinal malignancies. Additionally, 18F-FDG PET/CT may play a key role in the staging and extent of lesions in intestinal malignancies.
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Case Reports
First experience of lymphaticovenular anastomosis using BHC RobotiScope: A case report.
The RoboticScope (BHS Technologies GmbH, Innsbruck, Austria) is a robotic exoscope, which consists of a robotic arm that holds a 3-dimensional camera. It has an advantage that a surgeon can perform an operation comfortably with a favorable ergonomic position. Also, it allows the delivery of clear and high-quality visualization for surgeons. In this study, we would like to share our initial experience with this newly developed microscope technology in lymphaticovenular anastomosis (LVA). To the best of our knowledge, it is the first experience of LVA using this microscope in Asia. ⋯ The results represent the possibility of the application of a robotic microscope in the field of microsurgery, and further studies are necessitated to confirm the efficacy of this system.
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Near-infrared spectroscopy (NIRS) is a noninvasive bedside tool for monitoring regional cerebral oxygen saturation (rSO2). The sinus conversion of atrial fibrillation (AF) was shown to be responsible for increasing rSO2. However, the reason for this improvement has not yet been clearly explained. ⋯ Significant instantaneous changes were observed in rSO2 using NIRS after sinus conversion, without obvious hemodynamic alterations in the systemic circulation or other monitoring values.
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COVID-19, the disease caused by the novel coronavirus, is now a worldwide pandemic. The number of infected people has continually increased, and currently, this pandemic continues to present challenges to public health. Scatter plots are frequently used to interpret the impact in relation to confirmed cases. However, the 95% confidence intervals are rarely given to the scatter plot. The objective of this study was to; Develop 95% control lines on daily confirmed cases and infected days for countries/regions in COVID-19 (DCCIDC) and; Examine their impacts on public health (IPH) using the hT-index. ⋯ The scatter plot combined with the 95% control lines was applied to compare the IPHs hit by COVID-19 and suggested for use with the hT-index in future studies, not limited to the field of public health as we did in this research.
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Observational Study
1-hour versus 3-hour 99mTc-PYP imaging to evaluate suspected cardiac transthyretin amyloidosis.
The diagnosis of cardiac transthyretin amyloidosis can involve early or delayed 99mTc-pyrophosphate planar, single photon emission computed tomography (SPECT), and/or SPECT/CT imaging. We investigated whether image interpretations differed among modalities and time points. In this observational study, data were reviewed for 173 patients with suspected transthyretin amyloidosis who underwent planar and SPECT/CT 1 and 3 hours after radiopharmaceutical injection. ⋯ There were more equivocal cases for 1 and 3 hours planar imaging than for 1 and 3 hours SPECT (71-73% vs 23-26%, P < .001) and 1 and 3 hours SPECT/CT (3-5%, P < .001). SPECT/CT image quality was higher at 3 hours than at 1 hour and higher than that on SPECT (P = .001). Three-hour SPECT/CT readings provided the highest number of definitive readings, had the highest image quality, and constituted the preferred protocol for evaluating unselected populations of patients that have a clinical suspicion of possible cardiac amyloidosis.