June 2012
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6 Reads
Ultrasound Quarterly
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June 2012
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6 Reads
Ultrasound Quarterly
March 2012
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4 Reads
Ultrasound Quarterly
March 2012
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4 Reads
Ultrasound Quarterly
December 2011
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2 Reads
Ultrasound Quarterly
November 2011
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7 Reads
LEARNING OBJECTIVES 1) Selected case presentations will be used to promote visual recognition of unusual and instructive cases; supportive educational information will be provided. ACTIVE HANDOUT http://media.rsna.org/media/abstract/2011/11000296/fcos627_11000296_Ralls_RC210C.pdf
September 2011
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9 Reads
Ultrasound Quarterly
July 2011
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30 Reads
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15 Citations
Journal of Clinical Ultrasound
We present the sonographic findings of tumoral calcinosis in two patients compared with conventional radiography, CT, and MRI. Sonography in both patients demonstrated fluid-sedimentation levels, with more echogenic debris layering dependently. This appearance has been referred to as the "sedimentation sign" on conventional radiography and results from dependent layering of hydroxyapatite crystals within cystic spaces of the lesion. There are only three reported cases in the world literature of sonographic findings in patients with tumoral calcinosis. We describe the first two cases of sonography demonstrating the "sedimentation sign," which may aid in the diagnosis of tumoral calcinosis.
June 2011
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1 Read
Ultrasound Quarterly
March 2011
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5 Reads
Ultrasound Quarterly
December 2010
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3 Reads
Ultrasound Quarterly
... 31,32 This finding was also supported by a study which reported that portal pressure gradient is increased after the obliteration of varices. 33 Further-more, this raised pressure resulted in worsening of PHG and the development of fundal varices, although there are reports that despite the worsening of PHG and the development of fundal varices, there is no change in portal pressure with either sclerotherapy or EVl. 34 Variceal obliteration in cirrhotic patients varies with certain factors. ...
September 1991
Gastroenterology
... A clearer appearance of cysts, improvements in the signal-to-noise ratio, and better results are achieved, especially in overweight patients. 13 General image enhancement tools have also been used to improve the quality of ultrasonography images. In addition to filters and iterative back-projection methods, studies have been conducted in this field using machine or deep-learning methods. ...
March 1999
Journal of Clinical Ultrasound
... 1,2 A number of articles have discussed the characteristics of ovarian tumors with real-time ultrasonographic and Doppler analysis, including spectral waveform and color mapping, with high expectations of predicting malignancy in ovarian tumors. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] Many investigators have employed a variety of sonographic variables in an attempt to predict malignancy, including tumor size, texture, gray scale morphologic scoring systems, and Doppler analysis both as a screening tool in postmenopausal women and in the clinical scenario of suspected adnexal mass based on physical examination. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] The purpose of this study was to compare benign masses with malignant adnexal masses employing multiple ultrasonographic parametric and nonparametric markers, including tumor size, morphology, and Doppler velocimetry as well as color flow mapping characteristics. ...
January 1996
Applied Radiology
... Later, when there was a marked increase in INR, further deaths among the animals were not found. Moreover, the most frequent cause of hemorrhage in the course of acute pancreatitis is not a decrease in coagulation, but the erosion of small vessels [42]. On the other hand, we used an animal model of acute pancreatitis. ...
February 2009
... The patient underwent right hepatectomy vast majority of these abscesses with Escherichia coli and Clostridium species being the common causative agents [21]. Solitary hepatic abscesses are often cryptogenic with no clear-cut source to be identified [22,23]. CT typically shows a hypoattenuating cystic lesion with surrounding parenchymal edema (Fig. 7). ...
March 1998
Radiologic Clinics of North America
... The sedimentation sign, evident on plain radiograph, results from settling of radiodense calcific debris in cystic spaces. 1 It represents a fluid-fluid level caused by calcium layering and was first described in primary tumoral calcinosis. 2 It has been documented as an incidental finding on imaging studies in cases of systemic sclerosis with extensive tumoral calcinosis. 3 Four differential diagnoses: ...
July 2011
Journal of Clinical Ultrasound
... [3][4][5] The colour doppler variant of this artefact is the colour 'comet-tail artifact' which is described as a rapidly alternating colour doppler signal occurring posteriorly in relation to the crystal causing it and appearing on doppler as a linear band of colour showing aliasing, seen in calcified lesions, urinary and biliary stones. [6,7] case report A 29-year-old, moderately built, nonobese male presented to the hospital with chief complaints of epigastric pain for the past 2 days. The initial workup in the form of a routine hemogram did not reveal any abnormality with normal cell counts. ...
Reference:
Case Report
February 2009
American Journal of Roentgenology
... Furthermore, hepatocellular carcinoma may originate from a hepatocellular adenoma that has progressed. Hepatocellular adenomas can also have hemorrhagic foci, which can resemble a malignant process despite the lack of malignancy [4][5][6][7]. It is expected that the abscess will contain purulent, hypo echogenic fluid in the center; however, liquefaction can develop even 2 weeks later [8][9][10]. ...
January 1993
American Journal of Roentgenology
... Medical management for uncomplicated amoebic liver abscess is (3)(4)(5)(6) indicated if size of abscess is 5cm or less while therapeutic (7) aspiration is indicated if the volume of abscess exceeds 200ml . The therapeutic aspiration has been done in liver abscesses of size 7.5cm (standard deviation, 2.42cm), while abscesses of the size 8.5cm (standard deviation, 3.53cm) were treated successfully by (5) medical management . ...
July 1992
Radiology
... Existen múltiples signos ecográficos de afectación hepática en THH 239,[350][351][352] . El vaso más importante a valorar en pacientes con THH es la arteria hepática, ya que sus cambios reflejan la presencia de afectación hepática precozmente 239 . ...
August 1992
American Journal of Roentgenology