Journal of computer assisted tomography
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J Comput Assist Tomogr · May 2009
Randomized Controlled TrialMultidetector computed tomography chest examinations with low-kilovoltage protocols in adults: effect on image quality and radiation dose.
The purpose of our study was to assess the effect on image quality and radiation dose of chest multidetector computed tomography (CT) examinations with low-kilovoltage protocols for adults. ⋯ The use of low-kilovoltage protocol resulted in a significant reduction in the radiation exposure at chest CT, with image qualities comparable with those of the standard protocols.
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J Comput Assist Tomogr · May 2009
Controlled Clinical TrialDynamic enhanced computed tomography values of locally advanced breast cancers predicting axilla nodal metastasis after neoadjuvant chemotherapy.
We investigated the differences of dynamic enhanced values between the locally advanced breast cancers with and without axillary nodal metastasis on computed tomography (CT) after neoadjuvant chemotherapy. ⋯ Additional information of dynamic CT in our results reveals statistically distinguishable NME between those advanced breast cancers with or without axilla nodal metastasis after chemotherapy.
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J Comput Assist Tomogr · May 2009
Comparative StudyAnother dimension in magnetic resonance cholangiopancreatography: comparison of 2- and 3-dimensional magnetic resonance cholangiopancreatography for the evaluation of intraductal papillary mucinous neoplasm of the pancreas.
The purpose of this study was to compare 2-dimensional (2D) and 3D magnetic resonance cholangiopancreatography (MRCP) for image quality and diagnostic performance in the evaluation of pathologically verified intraductal papillary mucinous neoplasm (IPMN) of the pancreas. ⋯ Compared with 2D MRCP, 3D MRCP provides better image quality, offers superior evaluation of the PD and morphological details of IPMN, and is preferred for surgical planning.
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J Comput Assist Tomogr · May 2009
Comparative StudyComputed tomographic features of idiopathic fibrosing interstitial pneumonia: comparison with pulmonary fibrosis related to collagen vascular disease.
To compare the computed tomographic (CT) features of idiopathic fibrosing interstitial pneumonia with those of pulmonary fibrosis related to collagen vascular disease (CVD). ⋯ Compared with patients with CVD, those patients with an idiopathic fibrosing interstitial pneumonia showed a higher prevalence of a UIP pattern and lower prevalence of an NSIP pattern as determined by CT. Identification of coexisting extrapulmonary abnormalities on CT can support a diagnosis of CVD.
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J Comput Assist Tomogr · May 2009
Case ReportsChemical shift selective fat imaging using transition into driven equilibrium balanced steady-state free precession for quantification of adipose tissue.
The amount and distribution of adipose tissue are important risk factors for different diseases. We present here a novel method with intrinsic water suppression (water-suppressed transition into driven equilibrium [TIDE]) and its application to healthy volunteers for fat volume and distribution evaluations. Water-suppressed TIDE revealed high image quality without artifacts, high signal-to-noise ratio of fat, and excellent suppression of water tissues, with an acquisition time of approximately 0.6 s/slice. Water-suppressed TIDE is a powerful tool for simple quantification of adipose tissue.