Differentiation of benign and malignant breast tumors using Doppler spectral parameters including acceleration time index.

Differentiation of breast cancer has been receiving increasing attention in attempts to minimize the numbers of excisional biopsies for benign tumors. Doppler spectral parameters, such as peak systolic velocity (PSV) and pulsatility index (PI), have been used but these are unable to differentiate breast cancers and benign tumors with adequate levels of specificity and sensitivity. The aim of this study was to determine whether the acceleration time index (ATI) could reliably differentiate breast tumors.

Evaluation of tissue harmonic imaging for breast tumors and axillary lymph nodes.

We examined whether tissue harmonic imaging (THI) produces higher quality images of the breast and axilla than conventional sonography (CS). We studied 70 breast tumors in 68 consecutive patients and 170 axillary lymph nodes in 19 breast cancer patients. These areas were investigated by THI and CS, then image quality was evaluated by the consensus of three skilled radiologists.

Evaluation of hepatocellular carcinoma after treatment with transcatheter arterial chemoembolization: comparison of Lipiodol-CT, power Doppler sonography, and dynamic MRI.

Background: The purpose of this study was to compare the ability of Lipiodol-computed tomography (CT), power Doppler (PD) sonography, and dynamic magnetic resonance imaging (MRI) in evaluating the therapeutic effect of transcatheter arterial chemoembolization (TACE) on hepatocellular carcinoma (HCC).

Methods: TACE was performed by injecting an emulsion consisting of Lipiodol and a chemotherapeutic drug, followed by gelatin sponge particles, into 54 patients with 84 HCC lesions. Five to 7 days later, Lipiodol-CT, PD sonography, and dynamic MRI were performed.

The utility of tissue harmonic imaging in the liver: a comparison with conventional gray-scale sonography.

The purpose of this study was to determine if tissue harmonic imaging (THI) sonography produces higher quality images of the liver than conventional sonography. A prospective study was performed on 91 anatomic areas (60 liver tumors, 31 vascular structures) in 44 patients to compare the image quality of THI sonography with that of conventional sonography. THI sonography transmits at 2.

Double lung cancer combined with idiopathic thrombocytopenic purpura. A case report.

A 68-year-old woman was admitted because of two abnormal lung shadows, which later proved to be differentiated double cancer. Preoperative hematology tests showed a low platelet count and the result of bone marrow aspiration was compatible with idiopathic thrombocytopenic purpura (ITP). A normal platelet count was once obtained by preoperative percutaneous partial splenic arterial embolization (PSE).