TNM staging of pancreatic carcinoma using helical CT.

Objective: The purpose of this study was to determine the accuracy of helical CT scanning in predicting the stage of carcinoma of the exocrine pancreas using TNM staging guidelines and in predicting resectability of carcinoma of the exocrine pancreas.

Materials And Methods: Twenty-six patients with proven adenocarcinoma of the pancreas underwent uniphasic or biphasic helical CT scanning. Two observers unaware of the patient's surgical stage evaluated the CT examinations using the TNM system (with specific assessment and description of disease sites).

Diagnosis of aortic dissection: value of helical CT with multiplanar reformation and three-dimensional rendering.

Objective: Twenty-three patients with suspected aortic dissection were evaluated in this preliminary study of helical CT to determine the usefulness of axial sections, multiplanar reformation, and three-dimensional (3D) rendering in assessing the presence of dissection and the extent of intimal flap.

Materials And Methods: Patients were referred for helical CT scanning because of chest pain or an abnormal chest radiograph. Scans were performed during bolus injection of nonionic contrast material at 2.

Kinesin light chains: identification and characterization of a family of proteins from the optic lobe of the squid Loligo pealii.

Multiple transcripts coding for kinesin light chain isoforms are present in the tissues of the squid Loligo pealii. Isoform diversity arises through alternative RNA splicing in the amino and carboxyl termini of the putative proteins. Comparison to rat and Drosophila proteins demonstrates a remarkable conservation of structural domains and regulatory motifs.