نتایج جستجو برای: نمونه برداری با سوزن ظریف fna
تعداد نتایج: 679574 فیلتر نتایج به سال:
BACKGROUND At present only few studies directly compare the diagnostic yield of endobronchial ultrasound guided fine needle aspiration (EBUS-FNA) and transcervical video-assisted mediastinoscopy (TM) for mediastinal lymph node staging in patients with NSCLC. If and when EBUS-FNA may replace TM as Gold Standard remains controversial. METHODS From April 2008 to December 2009, 36 patients with m...
PURPOSE The aim of this study was to evaluate the diagnostic value of FNA-Tg for detecting lymph node metastases in patients with a history of differentiated thyroid cancer (DTC). MATERIALS AND METHODS A total of 58 patients with DTC diagnosis and evidence of single or multiple suspicious cervical lymph nodes were assessed. All underwent total or near-total thyroidectomy with (35 cases) or wi...
پیش‌زمینه: تشخیص نهایی هر تومور وابسته به بیوپسی و جواب آسیب‌شناسی می‌باشد. بیوپسی در تومورهای عضلانی اسکلتی می‌تواند به روش مرکزی با سوزن بزرگ یا باز انجام شود. در بیوپسی مرکزی با سوزن بزرگ آسیب بافتی بسیار اندک و مشکلات جراحی بعدی و هزینه کمتر است؛ ولی مشکل این روش نمونه بافتی اندک است. هدف از این مطالعه مقایسه نتایج بیوپسی سوزنی در تومورهای استخوانی با بیوپسی باز بود. مواد و روش‌ها: در یک م...
The surgical histology report was the standard for confirming the accuracy of the diagnostic FNA cytology classification. The specificity of the FNA cytology was estimated using two approaches. One was to consider the FNA as a diagnostic test if the FNA specimens were interpreted as suspicious of malignancy or positive for malignancy, and the remaining categories were classified as negative. Th...
سابقه و هدف: ژینکوماستی و پستان نابجا از ناهنجاری های پستان می باشند. با توجه به مشکلات شناخته شده بیوپسی جهت تشخیص و نیز گزارش های متفاوت از میزان حساسیت در تشخیص FNA در تشخیص ژینکوماستی و پستان نابجا و به منظور تعیین حساسیت آزمایش جراحی FNA و تعیین موارد مثبت آن در این دو ناهنجاری، این تحقیق از نیمه دوم سال 1375 تا خرداد ماه 1376 در مراجعه کنندگان به درمانگاه بیمارستان شهید دکتر بهشتی کاشان ب...
Background. The optimal time to initiate hands-on training in endoscopic ultrasound fine needle aspiration (EUS-FNA) is unclear. We studied the feasibility of initiating EUS-FNA training concurrent with EUS training. Methods. Three supervised trainees were instructed on EUS-FNA technique and allowed hands-on exposure from the onset of training. The trainee and attending each performed passes in...
Implications of assessing the proximal and far para-tracheal or sub-carinal nodes (para-tracheal [PTN] or sub-carinal [SCN]) associated with lower primary esophageal carcinomas (ECs) are unclear. To evaluate the value of endoscopic ultrasound guided fine-needle aspiration (EUS-FNA) for PTN and SCN, we analyzed results by positron emission tomography (PET) avidity, 4 EUS node malignancy features...
The sensitivity of local recurrence detection in differentiated thyroid cancer (DTC) is increased by measuring thyroglobulin in needle washouts from lymph node fine-needle aspiration biopsies (FNA-Tg). Recent studies have proposed minimum diagnostic threshold values for FNA-Tg and have reported interference from Tg antibodies (Tg Ab), leading to low or false-negative results. The aim of this st...
OBJECTIVE The aim of this study was to explore the diagnostic value of ultrasound-guided (US-guided) fine-needle aspiration cytology (FNAC), thyroglobulin measurement on fine-needle aspiration (FNA-Tg), combined US-guided FNAC, and the ratio between FNA-Tg and serum Tg (FNA-Tg/serum Tg) for patients with cervical lymph node (CLN) metastases from thyroid carcinoma. METHODS We selected 148 pati...
Thyroid fine needle aspiration (FNA) is a safe, cost effective, and relatively accurate method for guiding the initial management of a thyroid nodule. The popularity of thyroid FNA is reflected in the fact that over 350,000 thyroid FNAs are performed each year in the USA. As we move into the next decade, several issues pertaining to thyroid FNA are being addressed including: how to better apply...
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