Active clinical trials for "Neoplasms"

European lung cancer screening studies using computed tomography (CT) have shown that a management protocol based on measuring lung nodule volume and volume doubling time (VDT) is more specific for early lung cancer detection than a diameter-based protocol. However, whether this also applies to a Chinese population is unclear. The aim of this study is to compare the diagnostic performance of a volume-based protocol with a diameter-based protocol for lung cancer detection and optimize the nodule management criteria for a Chinese population.

The main objective of this study is to identify direct carcinogenic factors in the absence of cirrhosis, and the carcinogenesis pathways involved on nonfibrotic liver (NfCHC).

D2 gastrectomy is standard treatment of early gastric cancer in Japan but in other countries there is still some discord, especially in Europe and North America. Although the quantity of metastasis cancer in lymph node defines survival regardless of which country the patient is treated, the total number of lymph nodes harvested is an important factor to predict accurate staging and/or D2 gastrectomy. Both of the number total lymph nodes and the metastasis lymph node status in gastric cancer are important factors to decide each prognosis. This study evaluated the correlation between total lymph nodes retrieved and metastasis node by lymph node ratio (LNR) status to determine the recurrence rate after curative resection of gastric

To investigate the diagnostic accuracy of procalcitonin as an early predictor of infection after radical gastrectomy for gastric cancer.

The primary objective of this study is to collect de-identified, clinically-characterized stool and whole blood specimens for use in developing and evaluating the performance of new biomarker assays for detection of colorectal cancer (CRC).

Thyroid nodule patients with suggestion of fine needle aspiration biopsy (FNAB) offered by ultrasound are enrolled in the study. CTCs tested by Optimizing method and FNAB will be performed simultaneously. This is a double blind trial which pathologists and inspectors of CTCs don't know the result of each other. Surgical pathology and diagnostic results of FNAB is the primary endpoint and comparison will be made to see if CTCs combined with ultrasound can get similar diagnostic performance as FNAB. The diagnostic results of FNAB included Bethesda class II and more than V which are defined as benign and malignant, respectively.

single institution cases series review of histological and clinical data

Medullary carcinoma (MC) is a rare tumor with solid growth pattern without glandular differentiation and constitute less than 1% of colorectal cancer. Lymph node positivity and distant organ metastasis were reported to be lower than other poorly differentiated adenocarcinomas. Therefore, the diagnosis of MC is pathologically important in terms of follow-up and treatment. MC is commonly localized in the right colon, has a large tumor size, and is mostly diagnosed in the T4 stage. As MC most likely have defects in DNA MMR, the correct pathological diagnosis is important for the postoperative treatment and the prognosis of the patients.

Our group, prior to the present study, developed a handcrafted predictive model based on the extraction of surface patterns (textons) with a diagnostic accuracy of over 90%24. This method was validated in a small dataset containing only high-quality images. Artificial intelligence is expected to improve the accuracy of colorectal polyp optical diagnosis. We propose a hybrid approach combining a Deep learning (DL) system with polyp features indicated by clinicians (HybridAI). A pilot in vivo experiment will carried out.

This was an observational study comparing consecutive group of WE and CO2 insufflation in terms of right and proximal colon AMR by tandem colonoscopy.