Diagnostic and interventional radiology : official journal of the Turkish Society of Radiology
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A radiological sign can sometimes resemble a particular object or pattern and is often highly suggestive of a group of similar pathologies. Awareness of such similarities can shorten the differential diagnosis list. ⋯ In this article, we present the most frequently encountered plain film and CT signs in chest imaging. These signs include for plain films the air bronchogram sign, silhouette sign, deep sulcus sign, Continuous diaphragm sign, air crescent ("meniscus") sign, Golden S sign, cervicothoracic sign, Luftsichel sign, scimitar sign, doughnut sign, Hampton hump sign, Westermark sign, and juxtaphrenic peak sign, and for CT the gloved finger sign, CT halo sign, signet ring sign, comet tail sign, CT angiogram sign, crazy paving pattern, tree-in-bud sign, feeding vessel sign, split pleura sign, and reversed halo sign.
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Diagn Interv Radiol · Mar 2011
Comparative StudyEffects of percutaneous transhepatic biliary drainage on renal function in patients with obstructive jaundice.
We assessed the effects of percutaneous transhepatic biliary drainage on renal function in patients with obstructive jaundice using the estimated glomerular filtration rate (eGFR) and evaluated the factors associated with renal dysfunction. ⋯ Obstructive jaundice is associated with renal dysfunction, and serum direct bilirubin is a significant predictor of renal function. Percutaneous transhepatic biliary drainage improves renal function and is crucial for prognosis of obstructive jaundice.
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Diagn Interv Radiol · Mar 2011
Case ReportsCT angiography of systemic to pulmonary venous shunt in superior vena cava obstruction.
Superior vena cava obstruction is associated with multiple venous collaterals. There is an unusual pathway involving pulmonary venous collaterals in which systemic veins drain directly into the left heart, resulting in a right-to-left shunt. We report here a rare case of systemic to pulmonary venous shunt on both hemithoraces in superior vena cava obstruction associated with Budd-Chiari syndrome due to coagulopathy which was diagnosed by multidetector computed tomography angiography.
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Diagn Interv Radiol · Mar 2011
Evaluation of jugular foramen nerves by using b-FFE, T2-weighted DRIVE, T2-weighted FSE and post-contrast T1-weighted MRI sequences.
To assess the most effective magnetic resonance imaging (MRI) sequence for the visualization of the 9th, 10th, and 11th cranial nerves (glossopharyngeal, vagus, and accessory nerves, respectively) in their intraforaminal/canalicular courses. ⋯ b-FFE gradient echo MRI sequence with high spatial resolution is the optimal sequence for determining the courses of 9th-11th cranial nerves.
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We evaluate the use of multidetector row computed tomography (MDCT) angiography for the depiction of bronchial and non-bronchial systemic arteries (NBSAs), which frequently become enlarged as a secondary finding in a wide array of chronic lung diseases and other diseases that affect the pulmonary vascular system. MDCT angiography has enabled radiologists to provide thin-slice axial images, multi-planar reconstructions, interactive maximum intensity projections, and volume-rendered images to evaluate the origin and course of the abnormal bronchial arteries and enlarged NBSAs that may be the cause of hemoptysis. Embolization of the bronchial arteries is the primary treatment option in patients with massive hemoptysis. Precise localization of the bleeding vessel(s) prior to catheter arteriography not only is the most important factor for prompt and successful embolization but also prevents the recurrence of hemoptysis from missed NBSAs during procedures.