Background: This study focuses on the critical task of blood vessel segmentation in medical image analysis, essential for diagnosing cardiovascular diseases and enabling effective treatment planning. Although deep learning architectures often produce very high segmentation results in medical images, coronary computed tomography angiography (CTA) images are more challenging than invasive coronary angiography (ICA) images due to noise and the complexity of vessel structures. Methods: Classical architectures for medical images, such as U-Net, achieve only moderate accuracy, with an average Dice score of 0.722. Results: This study introduces Morpho-U-Net, an enhanced U-Net architecture that integrates advanced morphological operations, including Gaussian blurring, thresholding, and morphological opening/closing, to improve vascular integrity, reduce noise, and achieve a higher Dice score of 0.9108, a precision of 0.9341, and a recall of 0.8872. These enhancements demonstrate superior robustness to noise and intricate vessel geometries. Conclusions: This pre-processing filter effectively reduces noise by grouping neighboring pixels with similar intensity values, allowing the model to focus on relevant anatomical structures, thus outperforming traditional methods in handling the challenges posed by CTA images.

Background and Objectives: Cardiac myxoma (CM) is the most common primary benign neoplasm of the heart. This study’s objective was to analyse diagnostic features of CM, surgical data and postoperative courses of patients over a 20-year period in a single institution. Materials and Methods: We conducted a retrospective analysis of patients with diagnosed and pathologically confirmed CM who underwent surgical resection in our hospital from 1 January 2004 to 1 January 2024. Data was assessed and analysed from medical records. Results: The study included 76 patients (mean age, 61.7 ± 12.6 years; 60.5% female). The majority of patients (93.7%) had symptoms, most commonly presenting with dyspnoea (64.5%), chest pain (39.5%) and arrhythmias (35.5%). Myxomas were found in the left atrium (89.5%), right atrium (9.2%) and left ventricle (1.3%). Isolated tumour extirpation surgery was performed in 50 patients (65.8%). During the early postoperative period, arrhythmias were the most common complication (n = 16, 21.1%). Early in-hospital mortality occurred in two patients due to cardiopulmonary failure. In the late postoperative period, 11 deaths (14.9%) were observed 4 to 17.5 years after surgery. No recurrence of CM was found in any patient during the follow-up period, yet tumours of other localisations were detected in nine patients. Conclusions: Surgery is the first-line treatment for CM, with a good prognosis. Although during the late postoperative period no cardiac tumour recurrence was observed in our study, 12.2% patients were newly diagnosed with non-cardiac neoplasms. Therefore, we suggest monitoring patients not only for cardiac disorders but also for the occurrence of extracardiac tumours.

Background: Non-ischemic dilated cardiomyopathy (NIDCM) remains a significant part of heart failure (HF) origin, requiring more detailed investigation of the whole heart. This study aimed to examine the commonly used biomarkers in clinical practice and their relationship with early alterations in whole-heart myocardial mechanics and morphometry in patients with NIDCM. Methods: In this prospective single-center study, 98 patients (mean age 49.5 ± 10.1 years; 69.4% male) were included in the final sample during the first phase, when the diagnosis of NIDCM was made. After 1 year, 42 patients were evaluated during the second follow-up phase. The cardiac magnetic resonance was used to analyze whole-heart myocardial mechanics and morphometry. Biomarkers (troponin I, C-reactive protein (CRP), high-sensitivity CRP (hs-CRP), brain natriuretic peptide, suppression of tumorigenicity 2, and neutrophil to lymphocyte were assessed at the time of the diagnosis. Results: The strongest correlations were observed between hs-CRP levels and left atrial (LA) global longitudinal strain (GLS) changes after 1 year ( r = −.659, P < .001). It was revealed that the cut-off value of 3.6 mg/l of hs-CRP can prognosticate to find a reduced LA GLS with a sensitivity of 100% and specificity of 87% (AUC, 0.833; 95% CI, 0.65–1.008; P < .001).Other biomarkers had weaker associations with myocardial mechanics and morphometry; relationships were established only with left heart parameters. Conclusion: In NIDCM patients, the main biomarkers of HF are related to early changes in left-heart myocardial mechanics and morphometrics. The strongest relationship was between the initial levels of hs-CRP and early changes in LA GLS.

Aim: To assess the diagnostic value of left atrial deformation parameters during dobutamine stress echocardiography to predict significant coronary artery stenosis in patients with moderate pretest...

Introduction: Isolated coronary ostial stenosis of both ostia is a rare, potentially life-threatening condition, occurring in 0.1%–0.2% of patients undergoing coronary angiography. Case report: We present a case of a 69-year-old woman with a past medical history of breast cancer, who had been treated with radiotherapy, which most likely caused significant stenosis of both coronary ostia and likely accelerated aortic stenosis. Surgical angioplasty with autopericardium patch reconstruction of the left main coronary artery and right coronary arteries due to proximal stenotic disease was performed instead of venous or arterial bypasses with concomitant aortic valve replacement. The postoperative course was uneventful. There were no cardiovascular events 5 years after operation, and the patient remained free of any symptoms. Conclusions: Surgical coronary angioplasty offers an alternative to conventional coronary artery bypass grafting in isolated coronary ostial lesions and is advantageous in restoring more physiological myocardial perfusion, especially in those cases when conduits are suspected to be fibrotic, scarred or stenosed after radiation therapy or if there is the need to preserve conduits for future myocardial revascularisation in young patients.

Herein, we review the critical role of a multi-disciplinary team approach in managing the intricate complications of ST-elevation myocardial infarction (STEMI) complicated by cardiogenic shock (CS). Mechanical circulatory support (MCS) implantation represents a potentially life-saving intervention, often serving as a bridge to heart transplantation (HTx). However, complications from prior interventions, in patients receiving MCS due to STEMI-CS, may present additional challenges to successful HTx candidacy. A 63-year-old male suffered out-of-hospital cardiac arrest and was hospitalized due to acute anterior STEMI-CS. Emergency percutaneous coronary intervention was performed in the setting of cardiopulmonary resuscitation. Despite successful revascularization and subsequent optimal medical therapy hemodynamic status remained compromised, the decision was made to implant a HeartMate 3 (HM3) left ventricular assist device (LVAD) as a bridge to HTx. HM3 LVAD was implanted without complications and patient was weaned from mechanical ventilation. The later postoperative period was complicated by infections leading to the LVAD-related complications. Moreover, the patient experienced repeated episodes of stridor, which were attributed to significant tracheal stenosis (due to temporary tracheostomy). Finally, a suitable heart donor was found and a successful HTx was performed.