EUS-guided fine needle aspiration of the liver: indications, yield, and safety based on an international survey of 167 cases.

Background: The liver is a common site of metastases for various malignancies. EUS-guided fine needle aspiration (EUS-FNA) of liver masses has only been reported in small series from single centers.

Methods: A retrospective questionnaire was sent by e-mail to 130 EUS-FNA centers around the world regarding indications, complications, and findings of EUS-FNA of the liver.

Endoscopic ultrasound guided biopsy of mediastinal lesions has a major impact on patient management.

Background: A study was undertaken to evaluate the clinical impact of endoscopic ultrasound guided fine needle aspiration biopsy (EUS-FNA) in patients with mediastinal masses suspected of malignancy.

Methods: From April 1993 to December 1999, 84 patients were referred for EUS-FNA. In all patients CT scanning had shown a lesion of the mediastinum suspected of malignancy located adjacent to the oesophagus.

Postoperative analgesia is not different after local vs systemic administration of meloxicam in patients undergoing inguinal hernia repair.

Purpose: To distinguish between local and systemic drug effects, we compared pain scores, analgesic consumption and plasma concentrations after local vs i.v. administration of meloxicam 7.

Insulinoma diagnosed by endoscopic ultrasonography-guided biopsy.

Endoscopic ultrasound-guided fine-needle aspiration biopsy (EUS-FNA) is a new technique that seems to expand the utility of EUS, making definitive diagnosis of pancreatic lesions possible. However, the exact indications for the method, as well as its limitations, are not fully defined. We report on a patient with an insulinoma in the tail of the pancreas undetected by other imaging modalities that was conclusively diagnosed by EUS-FNA.

One-step endosonography-guided drainage of a pancreatic pseudocyst: a new technique of stent delivery through the echo endoscope.

We report here the first case of a one-step endosonography(EUS)-guided pseudocyst drainage. A prototype large channel curved array echo endoscope (Pentax FG-38 UX) and a prototype delivery system for placement of an endoprosthesis was used for the procedure. The delivery system (GIP MedicinTechnik GmbH/Medi-Globe Corporation) consists of a handle part with a piston, a metal ring sheath, a plastic catheter with a diathermy needle and a double pigtail endoprosthesis (8.

Early detection of recurrent hepatocellular carcinoma by endosonographically guided fine-needle aspiration biopsy.

Fine-needle aspiration guided by endoscopic ultrasonography (EUS) has shown promising results in establishing the cytological diagnosis of lesions identified during endoscopic ultrasound examinations. We report here on a case of recurrent hepatocellular carcinoma diagnosed by EUS-guided biopsy in which curative resection was possible as a result of early diagnosis.

Endosonography-guided fine-needle aspiration biopsy: diagnostic accuracy and complication assessment.

Background & Aims: Endosonography-guided fine-needle aspiration biopsy (EUS-FNA) permits cytological confirmation of EUS findings. A multicenter prospective evaluation of EUS-FNA for primary diagnosis, staging, and/or follow-up purposes was undertaken.

Methods: EUS-FNA was performed in 457 patients with 554 lesions.

Endoscopic ultrasonography and real-time guided fine-needle aspiration biopsy of solid lesions of the mediastinum suspected of malignancy.

Study Objective: The study details our preliminary experience with endoscopic ultrasonography (EUS) guided fine-needle aspiration biopsy (FNAB) of mediastinal masses suspected of malignancy.

Design: Prospective uncontrolled study.

Patients: Nine patients had lesions suspected of malignancy ranging from 1 to 9 cm in diameter in various locations of the mediastinum.

Endoscopic ultrasound scanning of the upper gastrointestinal tract using a curved linear array transducer: "the linear anatomy".

During the last few years endoscopes with electronic array transducers have been introduced, making EUS-guided biopsy possible. However, only a few studies have been published with this kind of instrument. In this article, the EUS examination procedure and the normal anatomy of the upper gastrointestinal tract using a curved linear array transducer are described.

Endoscopic ultrasonography with guided fine needle aspiration biopsy of a mediastinal mass lesion.

A method of endoscopic ultrasonography (EUS) with guided needle aspiration biopsy for conclusive diagnosis of a mediastinal mass lesions is described. The technique might prove useful for diagnosis of solid mass lesions in the mediastinum including diagnosis of lymph nodes for preoperative staging of lung cancer.

Endosonographically-guided fine needle aspiration biopsy of malignant lesions in the upper gastrointestinal tract.

A new method of endoscopic ultrasound (EUS) guided fine needle aspiration using an ultrasonic endoscope with a curved array transducer mounted in front of the optic lens was developed. As a result of the sector shaped sound field and the direction of the scanning plane it was possible to visualise ultrasonically a needle inserted through the biopsy channel. EUS guided biopsy was performed in 37 patients (with 39 lesions) using three types of needles.

Ultrasound image of human masseter muscle related to bite force, electromyography, facial morphology, and occlusal factors.

The thickness of the human masseter muscle, corresponding approximately to a cross-section at the most bulky part of the superficial portion, was measured by ultrasound scanning at three sites 1 cm apart. The study included 13 women, 21-28 yr of age, with a minimum of 24 teeth and without craniomandibular disorders. Ultrasonography produced a well-defined depiction of the muscle with distinct tendinous structures.

Popliteal venous aneurysms with or without pulmonary embolism.

Popliteal venous aneurysms are rare and are most often found in patients with pulmonary embolism suggesting that such aneurysms are thrombogenic. Only 16 cases have been found in the past and only a few of these patients were without thrombus or pulmonary embolism. In this paper three patients are presented of whom two showed signs of thrombus.

[Endoscopic ultrasound scanning of the upper gastrointestinal tract. Preliminary results].

International interest in endoscopic ultrasonic scanning (EUL) for assessment of mural and extramural pathology in and around the upper gastrointestinal tract has increased during recent years. Since 1. February 1989, the surgical gastroenterological department D in cooperation with the ultrasonic laboratory in Gentofte Hospital has undertaken EUL on selected patients employing a recently developed Picker-Pentax ultrasonic gastroscope.

[Endoscopic ultrasound scanning of the upper gastrointestinal canal].

Endoscopic ultrasound scanning (EUL) of the upper gastro-intestinal canal has rendered apparently very meticulous assessment of pathological conditions in and around the oesophagus, stomach and the duodenum possible during recent years. On account of the close contact with the mucosa, high-frequent ultrasound transducer with great solubility capacity are employed. The wall of the gastrointestinal canal may thus be presented and subdivided into five layers.

Endoscopic ultrasound examination of the upper gastrointestinal tract using a curved-array transducer. A preliminary report.

Endoscopic ultrasound examination (EUS) of the upper gastrointestinal (GI) tract for the assessment of mural and extramural pathology has attracted growing international interest in recent years. Since February 1989, EUS has been performed on selected patients in our institution using a new Picker-Pentax fiber-optic ultrasound (US) gastroscope. The instrument consists of a forward-view fiber-optic gastroscope with a 5-MHz curved-array linear US transducer mounted directly behind the lens.