AJR. American journal of roentgenology
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AJR Am J Roentgenol · Apr 1998
Multicenter StudyHepatocellular carcinoma in North America: a multiinstitutional study of appearance on T1-weighted, T2-weighted, and serial gadolinium-enhanced gradient-echo images.
The purpose of this study was to define the common appearances of hepatocellular carcinoma (HCC) in patients in North America by analyzing T1-weighted, T2-weighted, and serial gadolinium-enhanced gradient-echo images interpreted by radiologists at multiple institutions in North America. ⋯ The combination of hypointensity on T1-weighted images, hyperintensity on T2-weighted images, and diffuse heterogeneous enhancement was the most common appearance of HCC on MR images in a multiinstitutional patient population in North America. Small HCCs measuring less than or equal to 1.5 cm were frequently isointense on both T1-weighted and T2-weighted images and may be detected on immediate gadolinium-enhanced images only as diffuse homogeneously enhancing lesions.
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AJR Am J Roentgenol · Apr 1998
Percutaneous CT-guided catheter drainage of infected acute necrotizing pancreatitis: techniques and results.
The objective of this paper was to assess the safety and efficacy of percutaneous catheter drainage for initial treatment of infected acute necrotizing pancreatitis. ⋯ Percutaneous catheter drainage is a safe and effective technique for treating infected acute necrotizing pancreatitis. Overall, sepsis was controlled in 74% of patients, permitting elective surgery for treatment of pancreatic fistula, and 47% of patients were cured with no surgery required. No catheter-related complications occurred.
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AJR Am J Roentgenol · Apr 1998
Asymptomatic hydropneumothorax after therapeutic thoracentesis for malignant pleural effusions.
The purpose of this study was to document in a historical cohort the incidence and clinical observations of pneumothorax ex vacuo after therapeutic thoracentesis for malignant pleural effusions in patients with underlying parenchymal lung disease. ⋯ A subgroup of patients with malignant lung parenchymal disease who undergo therapeutic thoracentesis will develop asymptomatic hydropneumothoraces due to poor lung compliance. These patients do not require further catheter drainage. Pleural effusion will reaccumulate in the residual space over a variable period of time.
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AJR Am J Roentgenol · Mar 1998
Misrepresentation of publications by applicants for radiology fellowships: is it a problem?
We performed this study to determine whether applicants to the body and breast/body imaging fellowship programs at our institution misrepresented their publications in their applications or curricula vitae, as has been reported recently regarding applicants for gastroenterology fellowships. We also wanted to alert program directors to this issue. ⋯ A minimum of 16% (14/87) of applicants to the body and breast/body imaging fellowship programs at our institution who cited publications, or 7% of all 201 applicants in the time studied, appear to have misrepresented their publication record. Program directors should be aware of the possible means for prevention of this problem.
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AJR Am J Roentgenol · Mar 1998
Comparative StudyMR imaging of the inner ear and cerebellopontine angle: comparison of three-dimensional and two-dimensional sequences.
The aim of the study was to compare the ability of three-dimensional (3D) T2-weighted turbo spin-echo and gadolinium-enhanced 3D T1-weighted gradient-echo sequences with two-dimensional (2D) T2-weighted turbo spin-echo and gadolinium-enhanced T1-weighted spin-echo sequences to reveal anatomic and pathologic structures of the inner ear and cerebellopontine angle. ⋯ The 3D sequences revealed anatomic structures significantly better than did the 2D sequences and showed pathologic structures considerably more often than did the 2D sequences in all patients. MR imaging of the inner ear and cerebellopontine angle performed with 3D T2-weighted turbo spin-echo and gadolinium-enhanced 3D T1-weighted gradient-echo sequences provided the most accurate imaging leading to diagnosis in cases of abnormality.