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Our purpose was to determine whether perfusion MR imaging can be used to differentiate benign and malignant meningiomas on the basis of the differences in perfusion of tumor parenchyma and/or peritumoral edema. A total of 33 patients with preoperative meningiomas (25 benign and 8 malignant) underwent conventional and dynamic susceptibility contrast(More)
This paper aims to evaluate the value of perfusion magnetic resonance (MR) imaging in the preoperative subtyping of meningiomas by analyzing the relative cerebral blood volume (rCBV) of three benign subtypes and anaplastic meningiomas separately. Thirty-seven meningiomas with peritumoral edema (15 meningothelial, ten fibrous, four angiomatous, and eight(More)
To determine the correlation between CT measurements of emphysema or peripheral airways and airflow obstruction in chronic obstructive pulmonary disease (COPD). PubMed, Embase and Web of Knowledge were searched from 1976 to 2011. Two reviewers independently screened 1,763 citations to identify articles that correlated CT measurements to airflow obstruction(More)
OBJECTIVE To discuss the scheme and implementation of workstation configuration for medical imaging information systems suitable to the practical situation in China. METHODS The workstations were logically divided into picture archiving and communication system (PACS) workstations and radiology information system (RIS) workstations. The former applied to(More)
BACKGROUND To study the CT appearance of lung cancer combined with pleural dissemination and its anatomic characteristics. METHODS CT findings of 32 cases of lung cancer with pleural dissemination proved by surgery and pathology were analyzed. RESULTS The main CT manifestations were pleural effusion (24 cases), visceral pleural dissemination with(More)
BACKGROUND To explore the application of MR time-resolved subtracted perfusion imaging to qualitatively and partially quantitatively evaluate blood supply by pulmonary artery in patients with peripheral type lung cancer. METHODS Twenty-three patients with peripheral type lung cancer proved cytologically or/and histologically underwent MR perfusion study.(More)
BACKGROUND To explore the application value of MR dynamic time-resolved subtracted imaging in qualitative and quantitative assessment of blood supply by systemic artery in patients with lung cancer. METHODS A prospective study using MR FSPGR pulse sequence dynamic scan after contrast enhancement was undertaken in fifty-one patients with lung cancer which(More)
BACKGROUND To study the correlation between CT/MRI features and surgical and pathological findings of cancerous invasion of the main pulmonary artery (CIMPA) in lung cancer and to evaluate the role of CT and MRI in making surgical plan. METHODS CT findings in 15 cases and MRI findings in 13 cases were observed and blindly compared with surgical and(More)
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