Relationship between pituitary adenoma texture and collagen content revealed by comparative study of MRI and pathology analysis.

This study is to reveal the relationship between pituitary adenomas and tumor texture by comparing MRI and pathologic results. Preoperative imaging data of 38 cases of pituitary adenoma patients and collagen content of tumor specimens measured by histopathological were analyzed and compared. T2WI and diffusion coefficient assessment were used to reveal the relationship between tumor texture and collagen content.

MRI research of diaphragma sellae in patients with pituitary adenoma.

This study is to investigate the clinical significance of diaphragma sellae in patients with pituitary adenoma by MR images. A total of 47 cases of pituitary adenoma patients were enrolled in this study. Preoperative and postoperative MR scanning together with preoperative 3D-GE sequential scanning were performed.

Analysis of operative efficacy for giant pituitary adenoma.

Background: Surgical treatment of giant pituitary adenomas is difficult due to complicated dissection of the sellar area. The extent of tumor resection affects the efficacy of surgical treatment. This study is to investigate the efficacy of microsurgical treatment for giant pituitary adenoma and to analyze the relationship between treatment efficacy and tumor resection extent.

Racemization of (S)-profen thioesters by strong neutral bases in nonpolar organic solvents: implication for ion-pair kinetic basicity.

The racemization of (S)-profen 2,2,2-trifluoroethyl thioesters in isooctane with trioctylamine as base was carried out, in which the Hammett equation log(k(int)) = 3.584sigma - 3.745 was successfully applied to describe the electron-withdrawing effect of the substituents to the alpha-phenyl moiety of the thioesters.