Ivan Valkov

Scanned leaves boundary detection based on the consistent one-class segmentation

dmitry Liakhov, Inessa Gracheva, Andrey Kopylov, Oleg Seredin et autres

The accurate segmentation of the leaf area on scanned digital images plays a crucial role in the automated evaluation of its morphological characteristics. We propose here a new algorithm for extracting leaf area from the digital images based on a combination of …

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Soluble CD14 is Associated with Disease Activity and Severity in Chronic Viral Hepatitis C and B

Lyudmila Kancheva, P Nikolov, Tsvetelina Velikova, Ivan Valkov et autres

MONOCYTE CHEMOATTRACTANT PROTEIN -1 CONCENTRATIONS IN SERUM DEPEND ON OVERWEIGHT IN CHRONIC HEPATITIS C PATIENTS AND INCREASE AFTER SUSTAINED VIROLOGIC RESPONSE

Ivan Valkov

Cardiometabolic risk factors and carotid intima media thickness in patients with chronic hepatitis C

Raya Ivanova, Ivan Valkov, Tz. Marinova, A. Alexiev et autres

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A Comparative Analysis of Serum Lipids in Patients with Chronic Hepatitis C, Nonalcoholic Fatty Liver Disease and Healthy Controls

Ivan Valkov, R. Ivanova, C. Marinova, A. Alexiev et autres

Abstract Serum lipids abnormalities are widespread among patients with chronic hepatitis C (CHC), but the impact of concomitant hepatic steatosis [steatosis, nonalcoholic steatosis (NAS)], as well as distinctions between it and nonalcoholic fatty liver disease (NAFLD) are not well established yet. The …

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Association of Serum Lipids with Hepatic Steatosis, Stage of Liver Fibrosis and Viral Load in Chronic Hepatitis C

Ivan Valkov

INTRODUCTION: Hepatitis C Virus (HCV) relies on host lipids for its life cycle contributing to lipid abnormalities and hepatic steatosis. Disease progression is influenced by viral factors interacting with host immune and metabolic pathways. The significance of serum lipids for Chronic Hepatitis …

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Comparative analysis of serum lipids in patients with chronic hepatitis C, nonalcoholic fatty liver disease, and healthy controls

R. Ivanova, Ivan Valkov, C. Marinova, A. Alexiev et autres

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ECG Changes Dependent on the Forms of Disturbed Acid Base Balance in Patients with Chronic Obstructive Diseases and Chronic Pulmonary Heart

K. Zonev, Ivan Valkov

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Bone marrow touch imprints for detection of epithelial tumor metastases

Galen Kjurkchiev, Ivan Valkov

OBJECTIVE A total of 284 paired bone marrow biopsies and touch imprints were reviewed in order to select 21 cases with proven metastases from malignant epithelial tumors and to estimate the role of bone core touch imprints in the initial, preliminary diagnosis …

Role of touch imprint and core biopsy for detection of tumor metastases in bone marrow

Galen Kjurkchiev, Ivan Valkov

A total number of 248 bone marrow trephine biopsies were reviewed and 21 paired biopsy and touch imprints were identified to estimate the role of these two diagnostic methods for detection of tumor metastases from nonhematologic malignancies in the bone marrow. The …

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Role of touch imprint and core biopsy for detection of tumor metastases in bone marrow

Galen Kjurkchiev, Ivan Valkov

A total number of 248 bone marrow trephine biopsies were reviewed and 21 paired biopsies and touch imprints were identified to estimate the role of these two diagnostic methods for detection of tumor metastases from nonhematologic malignancies in the bone marrow. The …

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A New Variant Chromosomal Translocation t(2;2)(p23;q23) in CD30+/Ki-1+Anaplastic Large Cell Lymphoma

L Mitev, S. Christova, Evgeni Hadjiev, Margarita Guenova et autres

A case with a complex chromosome abnormality with a t(2;2)(p23;q23) in CD30+/Ki-1+ anaplastic large cell lymphoma (ALCL) is described. This chromosome aberration has not been reported previously in neoplastic diseases and was associated with T-cell phenotype and involvement of the nasopharynx by …

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