Journal of computer assisted tomography
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J Comput Assist Tomogr · Mar 2021
ReviewCross-sectional Imaging Manifestations of Extrapulmonary Involvement in COVID-19 Disease.
Coronavirus disease 2019 (COVID-19) disease has spread worldwide since it was first discovered in China's Hubei province in December 2019. Respiratory illness is the primary manifestation of COVID-19 disease, and its pathophysiology as well as the clinical and cross-sectional imaging manifestations has been adequately reported. ⋯ There is still limited understanding with regard to the extrapulmonary involvement in this disease. This review aims to put together the prevalence, proposed pathophysiology, and the spectrum of clinical and cross-sectional imaging manifestations of associated extrapulmonary findings in COVID-19 disease.
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J Comput Assist Tomogr · Jan 2020
Review Meta AnalysisThe Diagnostic Accuracy of Magnetic Resonance Imaging in Restaging of Rectal Cancer After Preoperative Chemoradiotherapy: A Meta-Analysis and Systematic Review.
To evaluate the overall diagnostic value of magnetic resonance imaging (MRI) in restaging of rectal cancer after preoperative chemoradiotherapy based on qualified studies. ⋯ This study provides a systematic review and meta-analysis of diagnostic accuracy studies of MRI for rectal cancer. The results indicate that MRI is a highly accurate diagnostic tool for rectal cancer T3-T4 staging and N staging but sensitivity and specificity are not high.
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J Comput Assist Tomogr · Jan 2020
Review Meta AnalysisThe Diagnostic Accuracy of Magnetic Resonance Imaging in Restaging of Rectal Cancer After Preoperative Chemoradiotherapy: A Meta-Analysis and Systematic Review.
To evaluate the overall diagnostic value of magnetic resonance imaging (MRI) in restaging of rectal cancer after preoperative chemoradiotherapy based on qualified studies. ⋯ This study provides a systematic review and meta-analysis of diagnostic accuracy studies of MRI for rectal cancer. The results indicate that MRI is a highly accurate diagnostic tool for rectal cancer T3-T4 staging and N staging but sensitivity and specificity are not high.
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J Comput Assist Tomogr · Nov 2018
ReviewNavigating the Pulmonary Perfusion Map: Dual-Energy Computed Tomography in Acute Pulmonary Embolism.
Pulmonary embolism is the third most common acute cardiovascular disease. Dual-energy computed tomography perfusion imaging is a promising adjunct in the detection of acute PE providing simultaneous functional assessment of pulmonary perfusion alongside the high-resolution morphological information from computed tomography pulmonary angiography. We review the evidence to date and common causes of perfusion defects including artifacts, parenchymal, and vascular causes, and discuss its potential in furthering our understanding of physiology and pathophysiology in acute pulmonary embolism.
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J Comput Assist Tomogr · Jan 2016
ReviewMagnetic Resonance Imaging of Malformations of Midbrain-Hindbrain.
We aim to review the magnetic resonance imaging appearance of malformations of midbrain and hindbrain. These can be classified as predominantly cerebellar malformations, combined cerebellar and brain stem malformations, and predominantly brain stem malformations. The diagnostic criteria for the majority of these morphological malformations are based on neuroimaging findings. ⋯ Cerebellar hyperplasias are seen in megalencephaly-related syndromes and hemimegalencephaly with ipsilateral cerebellomegaly. Cerebellar and brain stem malformations include tubulinopathies, Joubert syndrome, cobblestone malformations, pontocerebellar hypoplasias, and congenital disorders of glycosylation type Ia. Predominantly brain stem malformations include congenital innervation dysgenesis syndrome, pontine tegmental cap dysplasia, diencephalic-mesencephalic junction dysplasia, disconnection syndrome, and pontine clefts.