Magnetic resonance imaging (MRI) is a non-invasive investigation, which allows the anatomical investigation, but also the physiological processes of the human body, for the diagnosis of tumors, somatic diseases, etc. MRI can be diversified into neuroimaging, cardiovascular, musculoskeletal, functional, angiography, and other special-izations and techniques.The purpose of the work. Analysis of the possibilities and effectiveness of the application of MRI in the diagnosis of tumors and somatic pathologies in one year of activity (2021-2022) at an Ingenia Ambition-1.5T installation and the annual functional possibilities. Materials and methods. MRI investigations were performed at the Ingenia Ambition-1.5T Philips Magnetic Resonance Facility on 8,789 patients aged between 1 month and 84 years, with tumors and somatic diseases, applying the techniques and protocols corresponding to the investigative level. The protocols were applied in different planes (axial, coronary, sagittal, oblique), and techniques such as T2w, T1w, PD, FLAIR, SWI, DWI, DWI_ZOOM, DTY, DWI_BS, STIR, SPIR, T1_mDICSON, T2_mDIXON, 3D-DIR, T1w+Cdyn, T2*perfusion, ASL perfusion, 3D pCASL perfusion, Spectro, BTFE, dual FFT, MRSP, mDIXON_quantification.
Introduction. Ischemic cerebrovascular accident is a disease with an increasing incidence, a cause of death, and a disability problem, which requires research in the field of revascularization and reperfusion, and monitoring of postischemic cerebral changes. The aim of the work - is to carry out an analysis of the effectiveness of MRI in terms of diagnosis, revascularization of the ischemic surface, reperfusion over time, and post-ischemic brain stroke monitoring. Materials and methods. Brain MRI investigations of 2527 (100%) cases identified in the “MagnaMed” Medical Center during 2021 were analyzed. Ischemic stroke was established in 1541 (61%) patients. 122 MRIs were analyzed in terms of dynamic monitoring at the time of stroke, 7 days post-stroke, 180 days, and 360 days. Ischemic stroke diagnostic criteria, contrast agent revascularization, reperfusion, and recanalization criteria at the staged time were determined and analyzed. Conclusions: MRI identifies the processes of ischemia, revascularization, and reperfusion and can serve as a method of monitoring with specific criteria of the functional brain after stroke. Revascularization criteria established conclusive results at 7 days, 180 days, and 360 consecutive days.
BackgroundAortic valve stenosis (AS) is the most common valvular heart disease worldwide. When timely intervention is performed, aortic valve replacement can improve patients' quality and duration of life. Load‐independent left ventricular (LV) functional assessments, such as myocardial work indices (MWIs) and LV diastolic function parameters, could help clinicians decide on the optimal timing of intervention.AimsTo evaluate the reliability of MWI in AS patients and the changes in MWI and LV diastolic function after transcatheter aortic valve replacement (TAVR).MethodsWe enrolled 53 consecutive patients with severe AS undergoing TAVR admitted between March 2021 and November 2021. MWIs and LV diastolic function were assessed before and after TAVR for each patient.ResultsAll MWIs and LV diastolic function indices improved after TAVR. The degree of MWIs improvement was higher in patients with lower prior‐TAVR MWI values, while the more severe the impairment of diastolic function, the greater the post‐TAVR benefit.ConclusionThe introduction of myocardial work parameters into the routine assessment of patients with AS could improve our understanding of cardiac performance and aid in identifying the optimal timing for surgical or percutaneous treatment.
Carotid artery stenting (CAS) is usually performed through a femoral vascular access using 6–9 Fr guiding catheters. We investigated whether a systematic distal radial approach using 5 Fr guiding sheaths was a safe and effective alternative to transfemoral approach for CAS. From July 2020 to October 2022, two operators at our center systematically performed CAS using a 5 Fr distal radial approach in consecutive patients. The main endpoints of the study were procedural success via distal radial and via proximal or distal radial access. The learning curve was evaluated by comparing the first half of patients versus the second half of patients enrolled. Procedural data and 30-day clinical outcomes were collected. Fifty-one patients were prospectively enrolled. CAS was effectively performed via distal radial access in 45 patients (88%). Overall radial artery success was 92%. Distal radial CAS was successfully performed in 20 out of the first 25 patients enrolled (80%), and in 25 of the last 26 patients enrolled (96%; p = 0.07). Significantly less contrast was administered in the last 26 patients compared to the first 25 enrolled [110 (70, 140) mL vs. 120 (107, 150) mL; p = 0.045). Radial artery occlusion was reported in 1 patient (2%). Only 1 minor stroke (2%) was reported in-hospital and at 30-day follow-up. In conclusion, distal radial CAS using 5 Fr catheters was a safe procedure with a high success rate. The procedure had a relatively short learning curve in operators familiar with transfemoral CAS.
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