Journal of computer assisted tomography
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J Comput Assist Tomogr · Sep 2014
Comparative StudyVoxel-based correlation between whole-brain CT perfusion with 320-row area detector ct and iodine 123 iodoamphetamine brain perfusion spect in patients with cerebrovascular disease.
We compared cerebral blood flow (CBF) measured using computed tomographic (CT) perfusion (CTP) and N-isopropyl-p-[(123) I]-iodoamphetamine cerebral perfusion single-photon emission computed tomography (SPECT). ⋯ Computed tomographic perfusion overestimated CBF compared with SPECT and showed poor correlation at the skull base. Computed tomographic perfusion CTP excluding high-blood-flow areas improved the correlation over the whole brain in patients with chronic cerebrovascular disease.
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J Comput Assist Tomogr · Sep 2014
Assessment of dynamic contrast-enhanced magnetic resonance imaging in the differentiation of pancreatic ductal adenocarcinoma from other pancreatic solid lesions.
The purpose of this study was to investigate the diagnostic value of quantitative dynamic contrast-enhanced magnetic resonance imaging (QDCE-MRI) of pancreatic ductal adenocarcinoma (PDA) on a 3.0-T magnetic resonance. ⋯ The parameters of QDCE-MRI are useful for the diagnosis of PDA.
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J Comput Assist Tomogr · Sep 2014
Randomized Controlled TrialRole of compressive sensing technique in dose reduction for chest computed tomography: a prospective blinded clinical study.
The purpose of this study was to assess pulmonary lesion detection, diagnostic confidence, and noise reduction in sparse-sampled (SpS) computed tomographic (CT) data of submillisievert (SubmSv) chest CT reconstructed with iterative reconstruction technique (IRT). ⋯ More than 90% dose reduction could be achieved with one-fourth sparse-sampled and SubmSv chest CT examination when reconstructed with IRT. Chest CT dose at one fourth of a millisievert with SpS is possible with optimal lesion detection and diagnostic confidence for the evaluation of pulmonary findings.