نتایج جستجو برای: needle gauge

تعداد نتایج: 89895  

Journal: :Thorax 1992
P C Yang D B Chang Y C Lee C J Yu S H Kuo K T Luh

BACKGROUND Malignancies located in the upper middle mediastinum usually do not have a sufficiently large acoustic window to permit a conventional ultrasound guided parasternal biopsy. This study was concerned with an alternative approach whereby ultrasound is applied through the supraclavicular paratracheal window to allow percutaneous biopsy of middle mediastinal malignancies. METHODS Fiftee...

Journal: :Circulation research 1965
R S ZITNIK F S RODICH H W MARSHALL E H WOOD

Hir • Much is known of the cardiovas responses of normal man to le; but the available data on blood been obtained during relatively s Until recently, there has not b< factory method for continuously ing changes in thoracic aortic bloi man for significant periods of ti during, and after the changing caused by exercise: Thus, the actual alterations in aortic blood flow at the onset of exercise an...

Journal: :British journal of anaesthesia 1992
A R Williams G Van Hasselt

Effects of posture and baricity on spinal anaesthesia with 0.5% bupivacaine 5 ml. Spinal anaesthesia with 0.5 % bupivacaine 3 ml: comparison of plain and hyperbaric solutions administered to seated patients. POSTDURAL PUNCTURE HEADACHE Sir,—We read with interest the article by Lynch and colleagues [1] comparing the incidence of postdural puncture headaches (PDPH) associated with 22-gauge and 25...

Journal: :Endoscopy 2012
Y Nakai J B Samarasena T Iwashita D H Park J G Lee K Q Hu K J Chang

An 85-year-old woman presented with elevated liver function tests. A computed tomography (CT) scan showed normal liver morphology and a cyst in the pancreas. Viral hepatitis serology was negative but tests for autoimmune disease were positive: antinuclear antibody 1:320, antismooth muscle antibody 1:40, immunoglobulin G level 2600mg/dL. The patient underwent endoscopic ultrasound (EUS)guided fi...

2016
Jung Wook Park Min Woo Cheon Min Hong Lee

OBJECTIVE To compare the visibility and procedural parameters between a standard spinal needle and a new laser-etched needle (LEN) in real-time ultrasonography guided lumbar medial branch access in a phantom of the lumbosacral spine. METHODS We conducted a prospective single-blinded observational study at a rehabilitation medicine center. A new model of LEN was manufactured with a standard 22...

Journal: :Diagnostic and interventional imaging 2021

• Clinical use of a 1.2 Tesla open system for MRI-guided intervention is awaited. Needle artifact characteristics using MRI are clarified phantom study. Accuracy needle insertion acceptable clinical use. To evaluate the artifacts and accuracy magnetic resonance imaging (MRI) in phantom. First, apparent width on tip position error 16- 18-gauge MRI-compatible introducer needles 17-gauge cryoneedl...

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