Assessment of the Dynamic Alteration of Choriocapillaris Vessel Density after Focal Laser Photocoagulation with OCT Angiography.
Assessment of the Dynamic Alteration of Choriocapillaris Vessel Density after Focal Laser Photocoagulation with OCT Angiography. J Ophthalmol. 2020;2020:6213189 Authors: Yi Z, Xing Y, Chen C, Wang X, Liu J, He L, Zheng H Abstract Purpose: To evaluate the changes of choriocapillaris blood flow beneath laser lesions in noncenter-involved diabetic macular edema patients using optical coherence tomography angiography (OCTA). Methods: This was a retrospective case-series study. We used OCTA to analyze the characteristics of the choriocapillaris blood flow beneath laser lesions before laser treatment and at several intervals after treatment. The choriocapillaris vessel density (CCVD) beneath the laser lesions was based on the OCTA images and was defined as the proportion of flow pixels in the selected area calculated using FIJI software through automatic binarization processing based on threshold methods. Results: A total of 63 laser lesions in 8 eyes of 5 patients were included in this study. There was a significant decrease in the CCVD at 1 hour and 1 day following laser treatment (24.25% ± 5.04% and 22.00% ± 4.71%, respectively) when compared with the baseline value (39.09% ± 3.71%, all p
Authors: Akkemik O, Kazaz H, Tamsel S, Dündar N, Sahinalp S, Ellidokuz H Abstract OBJECTIVE: To evaluate the diagnostic accuracy of digital panoramic radiograph (DPR) for detection of carotid artery calcification (CAC) confirmed by Doppler Ultrasonography (DUSG) and to clarify the relationship between between CAC identified by DPR and cardiovascular events through a 5 year follow-up period. METHODS: Of 3600 consecutive patients examined, 158 patients presented with CAC as detected by DPR. The final study group was composed of 96 patients who had CAC confirmed by DUSG or CT angiogram. The control gro...
Conclusion: The FAZ area and perimeter showed excellent reproducibility. The macular perfusion parameters are not interchangeable despite automated estimation. The variability is more with changes in the vascular network like DR. This variability should be considered while comparing different scans.
Conclusion: Intravitreal dexamethasone as initial therapy in the treatment of DME is both safe and efficacious in the reduction of CMT and improvement of vision and can be considered as primary therapy for DME.
Conclusion: In our population, macular vessel density appears to decrease noticeably from the fourth decade onwards but a statistically significant decrease was observed only from the fifth decade onwards. However, it was not uniform along with all the quadrants. Similarly, the percentage of perfusion density dropped from the fourth decade but these values also varied among the different quadrants.
Conclusions: The development of a pheochromocytoma from an adrenal non functional adenoma is an extremely rare event, but potentially life-threating because of the catecholamine-associated cardiovascular toxicity. In particular, TTS is a form of cardiomyopathy that has been increasingly described as associated with catecholamine-secreting tumors. The exclusion of pheochromocytoma in a patient with TTS has important therapeutic implications, since the administration of β-blockers may be extremely harmful in patients with catecholamine surge in the absence of adequate α-blockage.
AbstractBackgroundAtrial myxoma remains a rare clinical entity with an incidence of surgically resected cases of 0.5 –0.7 per million population and prevalence of
ConclusionsQuiescent ‐interval single‐shot MRA has reasonable accuracy in a diabetic PAD population with high burden of disease, providing a non‐contrast option in patients with renal impairment. QISS‐ASL MRA requires further optimisation to be clinically feasible.
Eye, Published online: 10 February 2020; doi:10.1038/s41433-020-0788-1Letter to the Editor on “Macular OCT-angiography parameters to predict the clinical stage of nonproliferative diabetic retinopathy: an exploratory analysis”
Eye, Published online: 10 February 2020; doi:10.1038/s41433-020-0789-0Response to ‘Comment on: Macular OCT-angiography parameters to predict the clinical stage of nonproliferative diabetic retinopathy: an exploratory analysis’
ConclusionsApplied immediately after stent implantation, a ML model better differentiates those patients who will present SR over current discriminators.