conclusion scout views may be useful in determining dose and image quality in ct scanning; however, it is necessary to first determine the most appropriate scout view for ct scans. background while using the automatic exposure control technique in computed tomography (ct), the scout view determines the radiation dose for the ct scan by taking anatomical morphology into consideration. objectives...

BACKGROUND Radiation exposure has been a hot point in research field of computed tomography (CT). Recently, automated tube current modulation (ATCM) has emerged as an important technique to reduce radiation exposure. Many studies have shown that the difference in scout view would affect modulation. This prospective randomized controlled study is aimed to investigate the impact of an additional ...

Introduction: Lower ureteric calculus is usually managed on Medical Expulsive Therapy. These patients require periodic imaging studies to monitor stone position and to assess for hydronephrosis. There is high variability in determining the choice of imaging protocols to observe progression of ureteral calculi for follow up. Widespread use of NCCT KUB for initial diagnosis lead to use of scout v...

BACKGROUND Electrocardiogram (ECG) gating is commonly used to synchronize imaging windows to diastasis periods over multiple heartbeats in magnetic resonance (MR) coronary angiography. Calibration of the ECG gating parameters is typically based on a cine cardiovascular MR (CMR) video of the beating heart. Insufficient temporal resolution in the cine-CMR method, however, may produce gating error...

In this paper we compare models and experiments involving Scout II, an untethered four-legged running robot with only one actuator per compliant leg. Scout II achieves dynamically stable running of up to 1.3 m s−1 on flat ground via a bounding gait. Energetics analysis reveals a highly efficient system with a specific resistance of only 1.4. The running controller requires no task-level or body...

A comparative study of the recently proposed Scout algorithm (Scout O) [1] and the standard genetic algorithm (SGA) is presented. The main results are: update rules can be given, for which Scout O performs similar to SGA; schemata of SGA can be identi ed for Scout O as well; and Scout O ful lls Hollands admissible detector con guration paradigm [2], a necessary pre-cursor of SGA-like algorithms.

The University of Maryland has performed a detailed design for the space equivalent of an atmospheric diving suit. The Space Construction and Orbital Utility Transport (SCOUT) is a small single-person spacecraft, with all necessary utilities for extended sorties away from the host station. Through a pair of AX-5 style space suit arms integrated into the cabin wall, as well as a trio of dexterou...

MR imaging has become a powerful tool in the study of the spinal canal and its contents. In spite of the many advantages of this imaging technique over previous methods, the problem of spinal localization remains when imaging the upper, mid, and lower thoracic spine. Identification of the correct anatomic level in these regions holds obvious implications for planning therapy [1 ]. By using gela...