Abstract:
A solution is proposed relating to medical imaging applications. Particularly, a method (600) for imaging a body-part of a patient comprises simulating (624-630) corresponding operative simulation images from an operative baseline image and operative administration images, which operative administration images have been acquired with administration of a contrast agent at an operative administration-dose: the operative simulation images mimic administration of the contrast agent at a higher dose. For this purpose, a machine learning model (420) is used that has been trained to optimize a capability thereof to mimic a corresponding increase of the contrast agent from a sample source-dose to a sample target-dose: the sample source-dose is different from the operative administration-dose. Corresponding computer program (500) and computer program product for implementing the imaging method (600) are proposed. Moreover, a computing system (115) for performing the imaging method (600) and an imaging system (105) comprising the computing system (115) and a scanner (110) are proposed. A medical method based on the same imaging method (600) is further proposed.
Abstract:
1-13C-1,1-Bis(acetoxy(methyl))-2,2′-cyclopropane of formula (I): The compound can be hyperpolarized and used as a contrast agent in 13C Magnetic Resonance diagnostic technique (13C-MR) for the diagnosis of tumor.
Abstract:
Hyperpolarized 1-13C-2-oxoglutarate as contrast agent in 13C Magnetic Resonance diagnostic technique (13C-MRI) for use in the diagnosis of cancer. In particular, upon administration of said 1-13C-2-oxoglutarate, signals of 1-13C-glutamate are detected. More in particular, different MR signals from 13C nuclei are detected and compared, said comparison being useful to determine a difference between tumor and non-tumor tissues, to determine the aggressiveness of a tumor or the efficacy of an anti-tumor therapy.
Abstract:
New radical compounds, useful in the field of MRI imaging of formula (I). The radical compounds are in particular new triarylmethyl (“trityl”) radicals which can be used as polarizing agents for polarizing a molecule in the DNP process.
Abstract:
The present invention generally relates to a composition comprising acetic anhydride, a DNP agent and a gadolinium complex and its use for the preparation of hyperpolarised imaging agent for MR diagnostic analysis.
Abstract:
The present invention relates to a process for the preparation of aqueous solutions of hyperpolarized carboxylic organic acids ready for use in in-vivo MR diagnostic imaging, and the use of the corresponding anhydrides or esters as glass-forming agents.
Abstract:
The present invention generally relates to a composition comprising acetic anhydride, a DNP agent and a gadolinium complex and its use for the preparation of hyperpolarised imaging agent for MR diagnostic analysis.
Abstract:
A solution is proposed for training a machine learning model (420) for use in medical imaging applications. A corresponding method (700) comprises providing (703-743: 759-763) sample sets, each comprising a sample baseline image, a sample target image (acquired from a corresponding body-part of a subject to which a contrast agent at a certain dose has been administered) and a sample source dose (corresponding to a different dose of the contrast agent). The machine learning model (420) is trained (744-758) so as to optimize its capability of generating each sample target image from the corresponding sample baseline image and sample source image. One or more of the sample sets are incomplete, missing their sample source images. Each incomplete sample set is completed (704-742: 759-763) by simulating the sample source image from at least the sample baseline image and the sample target image of the sample set. A computer programs (500) and a computer program products for implementing the method (700) are proposed. Moreover, a computing system (130) for performing the method (700) is proposed.
Abstract:
The invention relates to a method of Magnetic Resonance (MR) detection, in particular 13C-MR detection, by using a diagnostic medium comprising a hyperpolarized ester, in particular ethyl acetoacetate. The method comprises the detection of the MR signal of a hyperpolarized 13C carboxylic ester and of its respective hyperpolarized metabolite.
Abstract:
New radical compounds, useful in the field of MRI imaging of formula (I). The radical compounds are in particular new triarylmethyl (“trityl”) radicals which can be used as polarizing agents for polarizing a molecule in the DNP process.