Gillian Haemer

Gillian Haemer
PhD Candidate
Function: 
Graduate Student
Affiliation: 
CAI²R
Fax: 
+1-212-263-7541
Address: 
4th Floor 660 First Avenue New York, NY 10016
Educational Details: 

B.S. in Biomedical (Electrical) Engineering; University of Southern California; 2009

M.S. in Biomedical Engineering and Imaging; Univeristy of Tennessee/Univeristy of Memphis Joint Program; 2011; "Design and Development of a Prototype of the Variable-Resolution X-Ray Breast CT Scanner"

Research Interest: 

Advisors: Dr. Graham Wiggins, PhD and Dr Daniel Sodickson, MD, PhD

Selected Publications: 

Presentations:

  • G Haemer, M Cloos, G Wiggins, “An 8 Channel Transmit Receive Helmet Coil with Dodecahedral Symetry”, Poster Presentation, ISMRM, 2013.
  • G Haemer, G Wiggins, “Effect of Shielding on Surface Coil Loops at 7T,” Electronic Poster Presentation, ISMRM, 2013.
  • CG Wiggins, B Zhang, M Cloos, R Lattanzi, G Chen, K Lakshmanan, G Haemer, D Sodickson, “Mixing Loops and Electric Dipole Antennas for Increased Sensitivity at 7 Tesla,” Poster Presentation, ISMRM, 2013.
  • G Haemer, FA DiBianca, “Bench-Top Model Design of a Prototype Hybrid-Mode Variable Resolution X-Ray CT Scanner,” Poster Presentation, Second Pl Honor Recipient, Memphis BioImaging Symposium, Memphis, TN, Nov 4-5, 2010.
  • G Haemer, R Melnyk, FA DiBianca, “Variable Resolution X-Ray CT: Design of a Prototype Small-Animal Hybrid-Mode Helical Scanner,” Poster Presentation, Memphis BioImaging Symposium, Memphis, TN, Nov 5-6, 2009.

Publications:

  • AP Peskin, K Kafadar, AM Santos, G Haemer, "Robust Volume Calculations of Tumors of Various Sizes," International Conference on Image Processing, Computer Vision, and Pattern Recognition, Las Vegas, NV. July 13-16, 2009.
  • PJ Slomka, LL Meunier, SW Hayes, W Acampa, M Oba, G Haemer, DS Berman, G Germano, "Comparison of Myocardial Perfusion 82Rb PET Performed with CT- and Transmission CT–Based Attenuation Correction," J Nucl Med 2008; 49:1–7.
  • J Terrill, W George, T Griffin, J Hagedorn, J Kelso, M Olano, A Peskin, S Satterfield, J Sims, J Bullard, J Dunkers, N Martys, A O’Gallagher, G Haemer, “Extending Measurement Science to Interactive Visualization Environments,” in Trends in Interactive Visualization: A-State-of-the-Art Survey, Elena Zudilova-Seinstra, Tony Adriaansen and Robert van Liere, Eds., Springer, U.K., 2009, 207-302.
Research Projects: 

Dodecahedral Head Coil Development:

Development of an 8-channel Transmit-Recieve (TxRx) array, consisting of 8 capacitively decoupled loop element, placed with dodecahedral symetry. It has been constructed around a fiberglass helmet modeled to maintain a safe distance from an average human head norm for European males. This design allows for full brain coverage. It also allows for coil profile variation along the x, y, and z directions, which creates better control during parallel transmission acquisitions. A full comparison of this coil to the relative industry standard is in process.

 

Effects of Shielding on Surface Coil Loops at 7T:

Radiation power loss, or the radiated power of a coil that is not absorbed into a sample, is assumed to be a problem t high field in MRI, as it is known to increase with the frequency (w) and coil-bounding area (A): R_loss is proportional to A^2 * w^4. Various authors suggest that the effects of radiation loss, such as decreased SNR and coil Q, can be mitigated by adding RF shielding to coils used at high field. However, it is also know that shielding can reduce the effectiveness of a coil due to counter-rotating image currents in the shield. The effect of shielding on coil performance are being tested using the most simple case of a single Transmit-Receive (TxRx) coil, to quantitatively compare the benefits of shielding for radiation loss in both transmit and receive at high field. A single surface coil was chosen both because of its simplicity, and because, unshielded, it is the most susceptible to radiation loss because of its open structure at high field. The single-loop case is also being tested in simulations to compare with the experimental results.

Additional Information: 

President of the Student Council for the NYU Sackler Institute of Graduate Biomedical Sciences, 2012-2013

Sponsors

Latest Updates

08/13/2018 - 14:41
08/01/2018 - 15:48
07/16/2018 - 13:43

Philanthropic Support

We gratefully acknowledge generous support for radiology research at NYU Langone Medical Center from:
 
• The Big George Foundation
• Raymond and Beverly Sackler
• Bernard and Irene Schwartz

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