University of Texas System

About: University of Texas System is a education organization based out in Austin, Texas, United States. It is known for research contribution in the topics: Cancer & Population. The organization has 13901 authors who have published 10925 publications receiving 319328 citations. The organization is also known as: UT System.

Gadolinium chelates as nmr contrast agents

Abstract: Chelates of gadolinium with 1,4,7-triazacyclononane-N,N',N"-triacetate; 1,4,7,10-tetrazacyclododecane-N,N',N'"tetraacetate; and 1,5,9-triazacyclododecane-N,N',N"-triacetate are useful as NMR contrast agents.

Method and system of automatic fluid dispensing for imprint lithography processes

Abstract: Disclosed herein is an automatic fluid dispensing method and system for dispensing fluid on the surface of a plate-like material, or substrate, including a semiconductor wafer for imprint lithography processes. The dispensing method uses fluid dispenser and a substrate stage that may generate relative lateral motions between a fluid dispenser tip a substrate. Also described herein are methods and devices for creating a planar surface on a substrate using a substantially unpatterned planar template.

Catheter imaging probe and method

Abstract: The probe (100) comprises a conduit (110) through which energy is transmitted having a first portion (120) through which the conduit (110) extends and a second portion (130) which rotates relative to conduit (110) to redirect the energy from the conduit (110).

Time, dose, and tumor volume relationships in irradiation of squamous cell carcinomas of the base of the tongue.

Abstract: Between January 1954 and August 1971, 174 patients with squamous cell carcinoma of the base of the tongue were treated with megavoltage external beam using conventional treatment times. Since the cumulative recurrence rate was 90% by 2 years, patients surviving 2 years without primary recurrences are considered to have no evidence of disease (NED) at the primary site. The primary control rate for T1 lesions is over 90% for doses of 6000 rads in 6 weeks to 6500 rads in 6 1/2 weeks. The control rate for T2 and T3 lesions is in excess of 80% with 7500 rads in 7 1/2 weeks. The slope of a hand-drawn exclusion line for T2 and T3 lesions is 0.38. For T4 lesions no significant pattern of dose, time, and primary control could be elicited. Of the 15 mandibular necroses, only six ultimately required mandibular resection. There was a signficant relationship (p = 0.03) between the development of mandibular necroses and extension of the primary onto the mucosa covering the mandible. A plot of ret dose versus area suggested a direct relationship between the portal area (volume irradiated) and the development of mandibular necroses.