Search Results - "Wachowicz, K."

Proton beam behavior in a parallel configured MRI‐proton therapy hybrid: Effects of time‐varying gradient magnetic fields by Santos, D. M., Wachowicz, K., Burke, B., Fallone, B. G.

“…Purpose Real‐time magnetic resonance (MR) guidance is of interest to various groups globally because the superior soft tissue contrast MR images offer over…”
Get full text

Characterization of tissue magnetic susceptibility-induced distortions for MRIgRT by Stanescu, T., Wachowicz, K., Jaffray, D. A.

“…Purpose: MR image geometric integrity is one of the building blocks of MRI-guided radiotherapy. In particular, tissue magnetic susceptibility-induced effects…”
Get full text

Correlation between k-space sampling pattern and MTF in compressed sensing MRSI by Heikal, A. A., Wachowicz, K., Fallone, B. G.

“…Purpose: To investigate the relationship between the k-space sampling patterns used for compressed sensing MR spectroscopic imaging (CS-MRSI) and the…”
Get full text

Minimal skin dose increase in longitudinal rotating biplanar linac-MR systems: examination of radiation energy and flattening filter design by Keyvanloo, A, Burke, B, St Aubin, J, Baillie, D, Wachowicz, K, Warkentin, B, Steciw, S, Fallone, B G

“…The magnetic fields of linac-MR systems modify the path of contaminant electrons in photon beams, which alters patient entrance skin dose. Also, the increased…”
Get more information

Effect of radiation induced current on the quality of MR images in an integrated linac-MR system by Burke, Ben, Wachowicz, K., Fallone, B. G., Rathee, Satyapal

“…Purpose: In integrated linac-MRI systems, the RF coils are exposed to the linac's pulsed radiation, leading to a measurable radiation induced current (RIC)…”
Get full text

Quantification of magnetic susceptibility fingerprint of a 3D linearity medical device by Stanescu, T., Mousavi, S.H., Cole, M., Barberi, E., Wachowicz, K.

“…•Modelling method for magnetic susceptibility effects applied to QA/QC devices.•Approach demonstrated in the case of a 3D linearity phantom.•Approach allows…”
Get full text

CNR considerations for rapid real‐time MRI tumor tracking in radiotherapy hybrid devices: Effects of B0 field strength by Wachowicz, K., De Zanche, N., Yip, E., Volotovskyy, V., Fallone, B. G.

“…Purpose: This work examines the subject of contrast‐to‐noise ratio (CNR), specifically between tumor and tissue background, and its dependence on the MRI field…”
Get full text

MTF behavior of compressed sensing MR spectroscopic imaging by Heikal, A. A., Wachowicz, K., Fallone, B. G.

“…Purpose: To investigate the modulation transfer function (MTF) behavior of compressed sensing (CS) MR spectroscopic imaging (MRSI) with regard to CS…”
Get full text

EP-1772: Comparison of dynamic 2D MRI with 4DCT lung tumor volumes for accurate real time imaging on linac-MR by Baker, S, Yip, E, Yun, J, Wachowicz, K, Gabos, Z, Fallone, G

Get full text

Geometric distortion and shimming considerations in a rotating MR-linac design due to the influence of low-level external magnetic fields by Wachowicz, K., Tadic, T., Fallone, B. G.

“…Purpose: This work investigates with simulation the effect of external stray magnetic fields on a recently reported MRI-linac hybrid, which by design will…”
Get full text

Implications of tissue magnetic susceptibility-related distortion on the rotating magnet in an MR-linac design by Wachowicz, K., Stanescu, T., Thomas, S. D., Fallone, B. G.

“…Purpose: One of the recently published concepts that combine the soft-tissue imaging capabilities of MRI with external beam radiotherapy involves the rigid…”
Get full text

EP-1659: An observatory study of organ motion in patients with cervical cancer using cinematic-magnetic resonance imaging by Jastaniyah, N, Murray, B, Wachowicz, K, Yahya, A, Pearcey, R

Get full text

TH‐E‐BRA‐09: Radiation Induced Current Effects on MR Images from an Integrated Linac‐MR System by Burke, B, Wachowicz, K, Fallone, B, Rathee, S

“…Purpose: During the real‐time MR image acquisition of an integrated linac/MRI system, the MRI's RF coils is exposed to pulsed radiation resulting in radiation…”
Get full text

SU‐E‐J‐81: MR‐Based Prostate Radiotherapy Treatment Planning: An Investigation of the Dosimetric Consequences of Distortion Correction by Baldwin, L, Pervez, N, Wachowicz, K, Fallone, B

“…Purpose: To quantify the effect of geometric distortions on patient dosimetry for MR‐based radiotherapy treatment planning (MR‐RTP) and to evaluate the…”
Get full text

WE‐G‐214‐04: MR Simulation Environment for MR‐Guided Radiation Therapy by Stanescu, T, Wachowicz, K, Jaffray, D

“…Purpose: To develop and implement a comprehensive framework for simulating MR‐like images with associated distortions relevant to radiation therapy. The…”
Get full text

TU‐C‐M100F‐01: Development of a Linac‐MRI System for Real‐Time ART by Fallone, B, Carlone, M, Murray, B, Rathee, S, Stanescu, T, Steciw, S, Wachowicz, K, Kirkby, C

“…Purpose: To describe the novel design of the coupling an of MRI to a medical linac to provide real‐time tracking of the tumor and healthy tissues during…”
Get full text

480 poster QUANTIFICATION OF MR IMAGE SUSCEPTIBILITY DISTORTIONS FOR IGRT by Stanescu, T, Wachowicz, K, Jaffray, D

Get full text

Sci—Thur PM: YIS — 06: Effect of the k‐space sampling pattern on the MTF of compressed sensing MRSI by Heikal, AA, Wachowicz, K, Fallone, BG

“…Compressed Sensing MRSI (CS‐MRSI) offers the ability to accelerate MRSI sequences while suffering minimal artifacts compared to conventional fast MRSI…”
Get full text

SU‐E‐J‐151: Evaluation of a Real Time Tumour Autocontouring Algorithm Using In‐Vivo Lung MR Images with Various Contrast to Noise Ratios by Yip, E, Yun, J, Gabos, Z, Wachowicz, K, Rathee, S, Fallone, B

“…Purpose: To quantitatively evaluate a lung tumour autocontouring algorithm using in‐vivo lung cancer patient MR images with varying contrast to noise ratios…”
Get full text

SU‐E‐J‐83: Feasiblity of Real Time Tumour Tracking in Low Field MRI ‐ A Phantom Study by Yip, E, Yun, J, Wachowicz, K, Rathee, S, Fallone, B

“…Purpose: Real time adaptive radiotherapy of lung tumours is a promising application of the proposed hybrid Linac‐MR system. Several linac‐MR designs use low…”
Get full text