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

Session

MR methods

20 May 2024, 11:00

La Biodola, Isola d'Elba

Conveners

MR methods

• Dennis Klomp (University Medical Center Utrecht)
• Michela Tosetti (IRCCS Stella Maris)

108. The promise of a new generation of affordable hybrid technologies exploiting low-field MRI

Joseba Alonso (Institute for Instrumentation in Molecular Imaging, i3M-CSIC)

20/05/2024, 11:00

Multimodal technologies combining different physical principles have enhanced medical imaging, diagnostic, treatment and monitoring tasks [1]. In hybrid devices, MRI systems are often integrated for their excellent soft-tissue contrast and multidimensional structural and morphological information. Unfortunately, they require cryogenic refrigeration, they are bulky, heavy, environmentally...

54. Estimation of T2* values in hyperpolarized 13C MRI of healthy and ischemic kidneys in a porcine model.

Malene Aastrup (The MR Research Centre, Aarhus University, Denmark)

20/05/2024, 11:40

Next-gen MR

Oral

Background: Performing hyperpolarized-¹³C MRI, knowledge of T2 values plays an important role for the sake of correct quantification of the metabolites (pyruvate, lactate, and bicarbonate) to increase the SNR and optimize image interpretation.
Aim(s): To estimate T2 values of pyruvate and lactate in both healthy and ischemic porcine kidneys at different concentrations...

79. Elucidating the effect of respiratory motion on in vivo 31P magnetic resonance spectroscopic imaging in the human liver at 7 Tesla

Woutjan Branderhorst (University Medical Center Utrecht)

20/05/2024, 12:00

Next-gen MR

Oral

Introduction: Respiratory motion affects the reconstructed spectra in magnetic resonance spectroscopic imaging (MRSI), as it changes the location of the nuclei and the B0 field they experience during the signal acquisition. B0 changes lead to a frequency shift of the acquired signal. This study aimed to determine the maximum frequency shift due to respiratory motion in a typical 31P liver...

48. Musculoskeletal MR Fingerprinting at 7T using spectral-spatial RF pulses

Matteo Cencini (Istituto Nazionale di Fisica Nucleare), Michela Tosetti (IRCCS Stella Maris)

20/05/2024, 12:20

Next-gen MR

Oral

Quantitative relaxometry and fat fraction mapping at ultrahigh field are important areas of research, hindered by the significant challenges imposed by the high field inhomogeneities. Here, we used a modified MR Fingerprinting scheme based on a spectral-spatial excitation to obtain robust water T1/T2 quantification and fat fraction mapping of the lower extremities of a healthy volunteer within...