R. Venook, B. Hargreaves, S. Conolly, G. Gold, G. Scott Electrical Engineering, Stanford University, Stanford, CA, United States, Radiology, Stanford University, Stanford, CA, United States Introduction There is a great deal of prior work regarding the advantage of using a surface coil versus a body coil to achieve high local SNR [1,2]. But there is not yet a careful, experimental comparison be...

Manuscript received June 25, 2015; revised manuscript received July 16, 201 a giant right coronary artery (RCA) pseudoaneurysm (4.4 4.5 cm) (Figure 1A). Coronary angiography revealed a large pseudoaneurysm in the RCA with 90% stenosis (Figure 2A, Online Video 1). This coronary pseudoaneurysm may have been spontaneous. Treatment options included resection with bypass grafting, coil embolization,...

The patient was a 12-year-old boy who presented with shortness of breath on minimal activity and was diagnosed with multiple arteriovenous (AV) malformations in the left lung. Figure 1 shows an AV malformation in the left lower lobe. Figure 2 shows the same malformation after percutaneous coil embolization. Multiple malformations were embolized, and at the end of the procedure (Figure 3), the p...

Helical coil heat exchangers are widely used in industrial applications ranging fromcryogenic processes, air-conditioning, and nuclear reactors to waste heat recovery due totheir compact size and high heat transfer coefficient. In this kind of heat exchangers, flowand heat transfer are complicated. This paper reports a numerical investigation of theinfluence of different parameters such as coil...

A Superconducting Magnetic Energy Storage (SMES) system stores energy in a superconducting coil in the form of a magnetic field. The magnetic field is created with the flow of a direct current (DC) through the coil. To maintain the system charged, the coil must be cooled adequately (to a “cryogenic” temperature) so as to manifest its superconducting properties – no resistance to the flow of cur...