AJR. American journal of roentgenology
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AJR Am J Roentgenol · Nov 2011
Prostate cancer detection on dynamic contrast-enhanced MRI: computer-aided diagnosis versus single perfusion parameter maps.
The purpose of this article is to assess the value of computer-aided diagnosis (CAD) for prostate cancer detection on dynamic contrast-enhanced MRI (DCE-MRI). ⋯ CAD can improve the diagnostic performance of DCE-MRI in prostate cancer detection, which may vary according to zonal anatomy.
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AJR Am J Roentgenol · Nov 2011
Historical ArticleMummified daughters of King Tutankhamun: archeologic and CT studies.
The purpose of this study was to use MDCT to examine two mummies found in the tomb of King Tutankhamun to estimate their gestational ages at mummification, to determine the mummification method, and to investigate the congenital deformities of one of the mummies that had been suspected at previous medical examinations. ⋯ The results of this study may set a precedent for use of CT and forensic image analysis in the study of ancient mummified fetuses.
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AJR Am J Roentgenol · Nov 2011
Comparative StudyCT of viral lower respiratory tract infections in adults: comparison among viral organisms and between viral and bacterial infections.
We retrospectively compared the CT findings of consecutive viral and bacterial lower respiratory tract infections (LRTIs) to determine their imaging appearance and any definable differences among the causative viruses and between the viral and bacterial infections. ⋯ There is considerable overlap in the imaging appearance of viral and bacterial respiratory infections. However, some characteristic differences can be seen, especially with RSV and adenovirus infections.
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AJR Am J Roentgenol · Nov 2011
Gadoxetic acid-enhanced hepatobiliary phase MRI and high-b-value diffusion-weighted imaging to distinguish well-differentiated hepatocellular carcinomas from benign nodules in patients with chronic liver disease.
The purpose of this article is to evaluate the value of gadoxetic acid-enhanced hepatobiliary phase imaging and high-b-value diffusion-weighted imaging (DWI) for distinguishing well-differentiated hepatocellular carcinomas (HCCs) from benign hepatocellular nodules in patients with chronic liver disease using 3-T MRI. ⋯ Hypointensity on gadoxetic acid-enhanced hepatobiliary phase images and hyperintensity on high-b-value DWI to surrounding liver parenchyma suggest well-differentiated HCCs rather than benign hepatocellular nodules in chronic liver disease.
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AJR Am J Roentgenol · Oct 2011
Comparative StudyDiagnosis of the invasion depth of gastric cancer using MDCT with virtual gastroscopy: comparison with staging with endoscopic ultrasound.
The objectives of this study were to retrospectively evaluate the lesion detection rate of gastric cancer using only virtual gastroscopy generated from MDCT images and the accuracy of invasion depth diagnosis (T staging) using virtual gastroscopy together with contrast-enhanced MDCT with multiplanar reconstruction (MPR) images (virtual gastroscopy with MPR), and to compare the diagnostic performance between virtual gastroscopy with MPR images and endoscopic ultrasound. ⋯ Virtual gastroscopy with MPR imaging is a useful modality in the T staging of gastric cancer.