Semi-Automatic Refinement of Myocardial Segmentations for Better LVNC Detection.

Accurate segmentation of the left ventricular myocardium in cardiac MRI is essential for developing reliable deep learning models to diagnose left ventricular non-compaction cardiomyopathy (LVNC). This work focuses on improving the segmentation database used to train these models, enhancing the quality of myocardial segmentation for more precise model training. We present a semi-automatic framework that refines segmentations through three fundamental approaches: (1) combining neural network outputs with expert-driven corrections, (2) implementing a blob-selection method to correct segmentation errors and neural network hallucinations, and (3) employing a cross-validation process using the baseline U-Net model.

Is Reperfusion Injury a Largely Intra-Ischemic Injury?

Reperfusion injury (RI) refers to an array of detrimental cellular and biochemical processes that are widely believed to be triggered by reperfusion following focal cerebral ischemia and to contribute to infarct extension and poor outcome despite complete recanalization. Accordingly, it is widely recommended that therapies targeting RI be administered after recanalization. The present topical review demonstrates, however, that the vast majority of, and possibly all, processes considered part of RI are not actually provoked by reperfusion but develop during the ischemic phase.

Significance of cycle 1 bone marrow biopsy in predicting outcomes and toxicities of venetoclax-based therapy for myeloid malignancies.

For older unfit patients receiving venetoclax-based induction, data on the significance of interim bone marrow biopies (BMBx) findings on clinical outcomes is lacking. We retrospectively evaluated interim BMBx results performed on Cycle 1 days 21-28 of venetoclax-based therapy in 69 adults with myeloid malignancies to determine whether blast clearance was associated with overall survival (OS) and overall response rate (ORR). Median age was 75 years (range 69-78).

Climate warming and temporal variation in reproductive strategies in the endangered meadow viper.

Anthropogenic climate change poses a significant threat to species on the brink of extinction. Many non-avian reptiles are endangered, but uncovering their vulnerability to climate warming is challenging, because this requires analyzing the climate sensitivity of different life stages and modeling population growth rates. Such efforts are currently hampered by a lack of long-term life-history data.

Real world virologic outcomes in patients with elevated body mass index receiving long acting cabotegravir/rilpivirine.

Background: The first long-acting injectable antiretroviral, cabotegravir/rilpivirine (LA-CAB/RPV), was FDA approved in January 2021 for persons with HIV suppressed on their current regimen. Body mass index (BMI) ≥30 kg/m2 has been identified as a risk factor for virologic failure, however data is limited due to small sample sizes. The aim of this study was to evaluate the impact of BMI on the efficacy of LA-CAB/RPV in a real-world setting.