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PSMR2024 10th Conference on PET, SPECT, and MR Multimodal Technologies, Total Body and Fast Timing in Medical Imaging

19–23 May 2024
La Biodola, Isola d'Elba
Europe/Rome timezone

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Session

PET/MR reconstruction

21 May 2024, 17:40
La Biodola, Isola d'Elba

La Biodola, Isola d'Elba

Hotel Hermitage

Conveners

PET/MR reconstruction

  • Laura Biagi (IRCCS Stella Maris)
  • Ian Law (Department of Clinical Physiology and Nuclear Medicine)

Presentation materials

There are no materials yet.

  1. 8. Multi-Spatial Resolution MRI Guided PET Image Reconstruction with Adaptive Prior Strength
    Jorge Cabello (Siemens Medical Solutions)
    21/05/2024, 17:40
    PET/MR and SPECT/MR
    Oral

    MRI-guided PET reconstruction has shown to reduce
    noise, and increase spatial resolution and quantification
    accuracy in PET imaging. However, its application has mainly
    been limited to brain imaging due to the availability of high
    resolution isotropic 3D MRI sequences, which are rarely used in
    whole-body MRI. The present works employs multi-parametric
    PET-MRI reconstruction to combine...

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  2. 80. Anatomically Guided PET Reconstruction using MR Information for Low Dose Imaging
    Matthew Spangler-Bickell (GE HealthCare, Waukesha, WI, USA)
    21/05/2024, 18:00
    PET/MR and SPECT/MR
    Oral

    Regularized PET reconstruction using anatomical priors has the potential to improve the resolution of the images while suppressing noise and Gibbs artifacts. An algorithm is investigated which calculates a similarity metric between an initial PET reconstruction and multiple MR contrasts, and penalizes the reconstruction in combination with a standard BSREM regularizer. The effect of the...

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  3. 92. Hybrid Reconstruction of PET data for Spinal Cord Imaging in PET/MRI.
    Eve Lennie
    21/05/2024, 18:20
    PET/MR and SPECT/MR
    Oral

    Spinal cord PET is challenging in PET/MR due to the absence of vertebral bone in attenuation correction and the impact of partial volume effects. The aim of this study is to investigate whether a hybrid image reconstruction method can improve quantification accuracy in the spinal cord and PET image quality in PET/MR. Simulated PET data created with the XCAT phantom to represent physiological...

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  4. 96. Structurally Guided PET Image Reconstruction for Improved Localisation of Pituitary Adenomas
    Pawel Markiewicz (London South Bank University and University College London)
    21/05/2024, 18:40
    PET/MR and SPECT/MR
    Oral

    Abstract—Pituitary adenomas, occurring in approximately 1 in 1100 individuals, can lead to a spectrum of symptoms by disrupting normal pituitary gland function, thereby significantly impacting quality of life. Positron emission tomography (PET) using [$^{11}$C]-methionine offers additional information in surgical planning, crucial for precise localisation of metabolically active pituitary...

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  5. 3. Improving Small Renal Mass Delineation and Quantification in PET by Contrast-Enhanced MR-Guided Reconstruction: A Pilot Study Using Hybrid PET/MR Data
    Jaewon Yang (University of Texas Southwestern)
    21/05/2024, 19:00
    PET/MR and SPECT/MR
    Oral

    Purpose: 18F-FDG PET/MR offers a unique opportunity to probe the biology of small renal masses (SRMs; cT1a ≤4cm). To address the low spatial resolution of PET (4-5 mm), our aim is to improve the delineation and quantification of SRMs in PET through contrast-enhanced MR-guided reconstruction.

    Method: A FDG PET/MR examination was performed in an mMR for a patient with a known SRM....

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