Publications by authors named "Katarzyna Gwozdziewicz"
Background: The development of computer-aided diagnosis systems in breast cancer imaging is exponential. Since 2016, 81 papers have described the automated segmentation of breast lesions in ultrasound images using artificial intelligence. However, only two papers have dealt with complex BI-RADS classifications.
View Article and Find Full Text PDFImage quality assessment of magnetic resonance imaging (MRI) data is an important factor not only for conventional diagnosis and protocol optimization but also for fairness, trustworthiness, and robustness of artificial intelligence (AI) applications, especially on large heterogeneous datasets. Information on image quality in multi-centric studies is important to complement the contribution profile from each data node along with quantity information, especially when large variability is expected, and certain acceptance criteria apply. The main goal of this work was to present a tool enabling users to assess image quality based on both subjective criteria as well as objective image quality metrics used to support the decision on image quality based on evidence.
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- The study evaluated the effectiveness of core biopsy for diagnosing pancreatic cancer, focusing on its sensitivity, accuracy, and safety.
- In a group of 100 patients, core biopsy showed a sensitivity of 92%, specificity of 100%, and an accuracy of 93.3%, with only 1% experiencing serious complications.
- The findings suggest that core biopsy may be more effective and cost-efficient than the commonly used endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) for obtaining tissue samples.
Article Synopsis
- The study aimed to determine the effectiveness of liver perfusion parameters measured by CT in predicting the severity of acute pancreatitis (AP) in patients during their first day of symptoms.
- 79 patients with AP were analyzed using perfusion CT, comparing those who developed severe AP (41 patients) to those with mild cases (38 patients).
- Results showed significant differences in liver perfusion, with severe AP patients having lower permeability-surface area and higher hepatic arterial fraction, indicating that p-CT may help identify patients at higher risk for severe AP.
Article Synopsis
- Neurosyphilis is linked to central nervous system vasculitis that affects medium and small blood vessels, causing disruptions in white matter due to water molecule diffusion changes.
- A study of MRI images from two neurosyphilis patients showed increased apparent diffusion coefficient (ADC) values in their white matter, despite it appearing normal.
- Analyzing ADC values can uncover hidden brain changes in neurosyphilis patients and may relate to their neuropsychiatric symptoms, highlighting the severity of the disease's impact on the CNS.
Purpose: Severe acute pancreatitis (AP) is still a significant clinical problem which is associated with a highly mortality. The aim of this study was the evaluation of prognostic value of CT regional perfusion measurement performed on the first day of onset of symptoms of AP, in assessing the risk of developing severe form of acute pancreatitis.
Material And Methods: 79 patients with clinical symptoms and biochemical criteria indicative of acute pancreatitis (acute upper abdominal pain, elevated levels of serum amylase and lipase) underwent perfusion CT within 24 hours after onset of symptoms.
Article Synopsis
- Pseudoarthrosis and delayed bone union are major complications in healing long bone fractures, traditionally treated with surgery, but non-operative options like extracorporeal shock wave therapy (ESWT) are being explored.
- A study of 31 subjects with bone healing complications showed that BS (bone scintigraphy) helped assess bone metabolism before and after ESWT, categorizing patients into two groups based on treatment outcomes at 24 weeks.
- Results indicated that ESWT increased bone metabolism in most patients, with a more significant increase in those who achieved complete union; the findings suggest scintigraphy can aid in patient qualification for treatment options based on their bone metabolism status.