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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Role of PROPELLER diffusion weighted imaging and apparent diffusion coefficient in the diagnosis of sellar and parasellar lesions
European Journal of Radiology, Volume 74, No. 3, Year 2010
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Description
Objective: To evaluate the role of the apparent diffusion coefficient (ADC) using periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) diffusion weighted imaging (DWI) in the differentiation between sellar and parasellar mass lesions. Materials and methods: The study protocol was approved by our institutional review board. We retrospectively studied 60 patients with sellar and parasellar lesions who had undergone PROPELLER DWI on a 3-T MR imager. Conventional MRI findings were expressed as the ratio of signal intensity (SI) in the lesions to the normal white matter and the degree of contrast enhancement. ADC values were calculated as the minimum (ADC-MIN), mean (ADC-MEAN), and maximum (ADC-MAX). All patients underwent surgery and all specimens were examined histologically. Logistic discriminant analysis was performed by using the SI ratios on T1- and T2-weighted images (T1-WI, T2-WI), the degree of enhancement, and absolute ADC values as independent variables. Results: ADC-MIN of hemorrhagic pituitary adenomas was lower than of the other lesions with similar appearance on conventional MRI (non-hemorrhagic pituitary adenomas, craniopharyngiomas, Rathke's cleft cysts; accuracy 100%); the useful cut-off value was 0.700 × 10-3 mm2/s. ADC-MAX of meningiomas was lower than of non-hemorrhagic pituitary adenomas (accuracy 90.3%; p < 0.01). ADC-MIN of craniopharyngiomas was lower than of Rathke's cleft cysts (accuracy 100%; p < 0.05). Conclusion: As PROPELLER DWI is less sensitive to susceptibility artifacts than single-shot echoplanar DWI, it is more useful in the examination of sellar and parasellar lesions. Calculation of the ADC values helps to differentiate between various sellar and parasellar lesions. © 2009 Elsevier Ireland Ltd. All rights reserved.
Authors & Co-Authors
Mahmoud, Omar M.
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Egypt, Asyut
Assiut University
Tominaga, Atsushi
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Amatya, Vishwa Jeet
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Ohtaki, Megu
Japan, Higashihiroshima
Hiroshima University
Sugiyama, Kazuhiko
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Saito, Taiichi
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Sakoguchi, Tetsuhiko
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Kinoshita, Yasuyuki
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Shrestha, Prabin
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Abe, Nobukazu
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Akiyama, Yuji
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Takeshima, Yukio Yukia
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Arita, Kazunori
Japan, Kagoshima
Kagoshima University Graduate School of Medical and Dental Sciences
Kurisu, Kaoru
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Yamasaki, Fumiyuki
Japan, Hiroshima
Hiroshima University Graduate School of Biomedical and Health Sciences
Statistics
Citations: 15
Authors: 15
Affiliations: 4
Identifiers
Doi:
10.1016/j.ejrad.2009.03.031
ISSN:
0720048X
Research Areas
Health System And Policy