First Stability Characterization for a CZT Detection System in an ee Collider Environment.

The SIDDHARTA-2 collaboration has developed a novel X-ray detection system based on cadmium-zinc-telluride (CZT, CdZnTe), marking the first application of this technology at the DAΦNE electron-positron collider at INFN-LNF. This work aims to demonstrate the stability of the detectors' performance in terms of linearity and resolution over short and long periods, thereby establishing their suitability for precise spectroscopic measurements within a collider environment. A reference calibration spectrum is presented in association with findings from assessments of linearity and resolution stability.

Total Body PET/CT: Clinical Value and Future Aspects of Quantification in Static and Dynamic Imaging.

Total body (TB) Positron Emission Tomography (PET) / Computed Tomography (CT) scanners have revolutionized nuclear medicine by enabling whole-body imaging in a single bed position. This review assesses the physical and clinical value of TB-PET/CT, with a focus on the advancements in both static and dynamic imaging, as well as the evolving quantification techniques. The significantly enhanced sensitivity of TB scanners can reduce radiation exposure and scan time, offering improved patient comfort and making it particularly useful for pediatric imaging and various other scenarios.

Novel approach to left bundle branch area pacing lead implantation using a 3-dimensional stylet.

Background: Left bundle branch area pacing (LBBAP) requires implantation of the lead deep in the interventricular septum. We developed a novel implantation method that does not require dedicated delivery catheters but only a manually shaped 3-dimensional (3D) stiff stylet.

Objective: The aim of the study was to characterize procedural outcomes of this technique when used as a routine approach for LBBAP.

Global R-wave peak time for diagnosis of left bundle branch capture.

Background: QRS axis deviation and rS configuration in V6 affect the ability of V6 R-wave peak time (RWPT) criterion to discriminate capture type during left bundle branch area pacing (LBBAP).

Objective: We hypothesized that combining RWPTs from lateral leads: I, aVL, V5, and V6 may better reflect left ventricular activation time and that such a global RWPT may be insensitive to changes in QRS configuration.

Methods: The analysis included 519 electrocardiograms (ECGs) with nonselective left bundle branch pacing (nsLBBP) and 176 ECGs with left ventricular septal pacing (LVSP).