Objective: To examine the gross pathology and histopathology of ablation zones created from radiofrequency (RF) ablation and to correlate their chronological changes.
Methods: A total of 48 in vivo ablation zones (16 rabbit livers) were obtained immediately after and also 30 min, 1 h and 2 h after RF ablation and were subjected to haematoxylin and eosin (H&E) staining, nicotinamide adenine dinucleotide (NADH) diaphorase staining, terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) staining. Chronological changes in gross pathology and histopathology were evaluated and correlated with each other.
Results: Peripheral red zones on gross pathology correlated with peripheral zones on H&E staining, lightly stained peripheral zones on NADH staining and peripheral positive zones on TUNEL staining. Central white zones on gross pathology correlated with combined central and border zones on H&E staining, central negative zones on NADH staining and combined central-positive and middle-negative zones on TUNEL staining. Boundary visibility between central white and peripheral red zones on gross pathology was significantly higher at 1 and 2 h than immediately after RF ablation. As time increased after RF ablation, visibility of the border zone on H&E staining and the grade of positively stained hepatocytes in the peripheral zone on TUNEL staining increased.
Conclusion: Chronological changes in gross pathology of RF ablation zones correlated well with histopathology. The boundary between the central white and peripheral red zones tended to become clear at 1 h after RF ablation. Advances in knowledge: (1) RF ablation zones show chronological changes on gross pathology and histopathology. (2) Gross pathology and histopathology correlate well with each other.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5601520 | PMC |
| http://dx.doi.org/10.1259/bjr.20160361 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cardiac pathology associated with hypertension and chronic kidney disease in aged cats.
J Comp Pathol
January 2025
Department of Comparative Biomedical Sciences, Royal Veterinary College, University of London, Royal College Street, London NW1 0TU, UK. Electronic address:
Hypertension is a common condition in older cats, often secondary to chronic kidney disease (CKD). Although the heart is one of the organs damaged by hypertension, the pathology of the feline hypertensive (HT) heart has been poorly studied. The aim of this retrospective study was to describe the gross and microscopic pathology of hearts obtained from cats at post-mortem examination and to compare cats diagnosed with hypertension with cats of similar age and kidney function for which antihypertensive treatment was not deemed clinically necessary.
View Article and Find Full Text PDFCost-effectiveness analysis of pembrolizumab with chemotherapy for metastatic nonsquamous non-small cell lung cancer in Taiwan.
J Food Drug Anal
December 2024
Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
This study was aimed to evaluate the cost-effectiveness of pembrolizumab with chemotherapy (pembrolizumab combination therapy) and compare it with standard-of-care platinum-based chemotherapy (chemotherapy alone) as a first-line treatment for metastatic nonsquamous NSCLC from the perspective of Taiwan's third-party-payer public health-care system. We used a partitioned survival model with an estimated time horizon of 10 years. The partitioned survival model uses Kaplan-Meier estimates of progression-free and overall survival from the KEYNOTE-189 clinical trial.
View Article and Find Full Text PDFCost Effectiveness of Exclusionary EGFR Testing for Taiwanese Patients Newly Diagnosed with Advanced Lung Adenocarcinoma.
Pharmacoeconomics
January 2025
Division of Pulmonology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Shengli Road, Tainan, 704, Taiwan.
Background And Objective: Approximately half of lung adenocarcinomas in East Asia harbor epidermal growth factor receptor (EGFR) mutations. EGFR testing followed by tissue-based next-generation sequencing (NGS), upfront tissue-based NGS, and complementary NGS approaches have emerged on the front line to guide personalized therapy. We study the cost effectiveness of exclusionary EGFR testing for Taiwanese patients newly diagnosed with advanced lung adenocarcinoma.
View Article and Find Full Text PDFBackground: MicroRNAs (miRNAs) are important post-transcriptional regulators of gene expression, but we have limited insight into their role in age-related cerebral pathologies. Here, we investigated the association between miRNAs and nine age-related cerebral pathologies in participants of the ROS/MAP cohorts.
Method: MiRNA sequencing was performed on samples from the dorsolateral prefrontal cortex of 617 brain donors from participants of the ROS/MAP cohorts.
Basic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of California, Irvine, Irvine, CA, USA.
Background: Limbic-predominant age-related TDP-43 encephalopathy neuropathologic change (LATE-NC) is a common cause of dementia in older age. LATE-NC was first coined in 2019 with proposed staging criteria of TDP-43 progressing from amygdala (stage 1), to hippocampus (stage 2), to middle frontal gyrus (stage 3). Criteria were updated in 2023 to further categorize stage 1 to either TDP-43 inclusions in amygdala alone (stage 1a) or hippocampus alone (stage 1b).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!