30 results about "Scintigraphy" patented technology

The present invention relates to antibodies with sub-nanomolar affinity specific for a characteristic epitope of the ED-B domain of fibronectin, a marker of angiogenesis Furthermore, it relates to the use of radiolabeled high affinity anti ED-B antibodies for detecting new-forming blood vessels in vivo and a diagnostic kit comprising comprising said antibody. Furthermore, it relates to conjugates comprising said antibodies and a suitable photoactive molecules (e.g. a judiciously chosen photosensitizer), and their use for the selective light-mediated occlusion of new blood vessels.

The present invention relates to the diagnosis of clinical conditions characterized by undesirable and / or abnormal selectin expression. In particular, the invention provides for the use of fucoidans for the detection of selectins using imaging techniques including ultrasonography, scintigraphy and MRI. Selectin-targeted imaging agents are provided that comprise at least one fucoidan moiety associated with at least one detectable moiety. Methods and kits are described for using these imaging agents in the diagnosis of clinical conditions such as thrombosis, myocardial ischemia / reperfusion injury, stroke and ischemic brain trauma, neurodegenerative disorders, tumor metastasis and tumor growth, and rheumatoid arthritis.

The invention relates generally to the field of cancer detection, diagnosis, subtyping, staging, prognosis, treatment and prevention. More particularly, the present invention relates to methods for the detection, and / or diagnosing and / or subtyping and / or staging of lung cancer in a patient. Based on a particular panel of biomarkers, the present invention provides methods to detect, diagnose at an early stage and / or differentiate small cell lung cancer (SCLC) from non-small cell lung cancer (NSCLC) and within NSCLC to differentiate between squamous cell carcinomas (SCC), adenocarcinomas (AC), within SCC to discriminate G2 and G3 stage and within lung cancer to differentiate for lung cancers with or without neuroendocrine origin. It further provides the use of said panel of biomarkers in monitoring disease progression in a patient, including both in vitro and in vivo imaging techniques. The in vitro imaging techniques typically include an immunoassay detecting protein or antibody of the biomarkers on a sample taken from said patient, e.g. serum or tissue sample. The in vivo imaging techniques typically include chest radiographs (X-rays), Computed Tomography (CT) imaging, spiral CT, Positron Emission Tomography (PET), PET-CT and scintigraphy for molecular imaging and diagnosis and to monitor disease progression and treatment response in patients. It is accordingly a further aspect to provide a kit to perform the aforementioned diagnosing and / or subtyping and / or staging assay and the imaging techniques, comprising reagents to determine the gene expression or protein level of the aforementioned panel of biomarkers for in vitro and in vivo applications.

The invention relates generally to the field of cancer detection, diagnosis, subtyping, staging, prognosis, treatment and prevention. More particularly, the present invention relates to methods for the detection, and / or diagnosing and / or subtyping and / or staging of lung cancer in a patient. Based on a particular panel of biomarkers, the present invention provides methods to detect, diagnose at an early stage and / or differentiate small cell lung cancer (SCLC) from non-small cell lung cancer (NSCLC) and within NSCLC to differentiate between squamous cell carcinomas (SCC), adenocarcinomas (AC), within SCC to discriminate G2 and G3 stage and within lung cancer to differentiate for lung cancers with or without neuroendocrine origin. It further provides the use of said panel of biomarkers in monitoring disease progression in a patient, including both in vitro and in vivo imaging techniques. The in vitro imaging techniques typically include an immunoassay detecting protein or antibody of the biomarkers on a sample taken from said patient, e.g. serum or tissue sample. The in vivo imaging techniques typically include chest radiographs (X-rays), Computed Tomography (CT) imaging, spiral CT, Positron Emission Tomography (PET), PET-CT and scintigraphy for molecular imaging and diagnosis and to monitor disease progression and treatment response in patients. It is accordingly a further aspect to provide a kit to perform the aforementioned diagnosing and / or subtyping and / or staging assay and the imaging techniques, comprising reagents to determine the gene expression or protein level of the aforementioned panel of biomarkers for in vitro and in vivo applications.

The invention relates to combination comprising a pharmaceutically acceptable preparation of a compound of formula (I), or a pharmaceutically acceptable salt thereof, and a gallium and its use in diagnosis. The invention also pertains to the use of a compound of formula I or a pharmaceutically acceptable salt thereof, for the preparation of a medicament for the treatment of an excess iron overload in the human or animal body whereby said body is undergoing gallium scintigraphy and whereby the treatment removing said excess of iron is interrupted for a period of 2 to 10 days prior to the gallium scintigraphy and resumed after the gallium scintigraphy readings.

The present invention relates to the diagnosis of clinical conditions characterized by undesirable and / or abnormal selectin expression. In particular, the invention provides for the use of fucoidans for the detection of selectins using imaging techniques including ultrasonography, scintigraphy and MRI. Selectin-targeted imaging agents are provided that comprise at least one fucoidan moiety associated with at least one detectable moiety. Methods and kits are described for using these imaging agents in the diagnosis of clinical conditions such as thrombosis, myocardial ischemia / reperfusion injury, stroke and ischemic brain trauma, neurodegenerative disorders, tumor metastasis and tumor growth, and rheumatoid arthritis.

The present invention relates to contrast agent enhanced medical ultrasound imaging. In particular, the contrast agents provided are useful for cell imaging and cell therapy, as well as in vivo targeting, drug delivery and perfusion or vascular imaging applications. More specifically, it provides a particle comprising a fluorinated organic compound and a metal. Such particles may be advantageously employed in qualitative or quantitative imaging such as acoustic imaging including photoacoustic and ultra-sound imaging, MRI imaging, such as 19F imaging, 1H imaging including T1 and T2 weighted imaging, SPECT, PET, scintigraphy, fluorescence imaging and optical coherence imaging and tomographic applications. This may then be employed in cell labeling, microscopy, histology or for imaging vasculature or perfusion in vivo and in vitro.

The present invention is related to scaffolds for tissue engineering and organ engineering. More particularly, the present invention is related to a method for the production of a labelled scaffold for tissue and / or organ engineering comprising a reactive fluorinated surfactant, which serve as imaging label for medical imaging means, like CT, MRI, PET, scintigraphy and / or ultrasound imaging and the like.

The invention relates to the use of a mixture comprising erbium and praseodymium as a radiation attenuating composition, i.e. as a composition that can attenuate ionizing radiation, in particular X- and gamma-type electromagnetic radiation.The invention also relates to a radiation attenuating material comprising an erbium- and praseodymium-based composition, as well as a protective article which provides group or individual protection against ionizing radiation and comprises said material.The invention is suitable for use in nuclear medicine (scintigraphy, radiotherapy, etc.), radiology, medical imaging, the nuclear industry, etc.

The present invention relates to antibodies with sub-nanomolar affinity specific for a characteristic epitope of the ED-B domain of fibronectin, a marker of angiogenesis. Furthermore, it relates to the use of radiolabelled high affinity anti ED-B antibodies for detecting new-forming blood vessels in vivo and a diagnostic kit comprising comprising said antibody. Furthermore, it relates to conjugates comprising said antibodies and a suitable photoactive molecules (e.g. an appropriately chosen photosensitizer or radionuclide), and their use for the selective light-mediated occlusion of new blood vessels.

An apparatus and method to map the body habitus, without the use of ionizing radiation, and to simultaneously track the position of an ionizing radiation imaging detector with respect to the body habitus map so that the radiotracer distribution of the patient can be fused with the body habitus map and thus provide an anatomical reference for the radiotracer distribution within the patient. A depth camera, capable of imaging a 3-dimensional surface, is attached to an ionizing radiation imaging detector where the relative position between the two is known.

The present invention discloses indicator fluids, reference indicator fluid, and usage thereof, and systems and methods for assessing movement of molecular substances within, to or from a cerebrospinal fluid, brain or spinal cord compartment of a human cranio-spinal cavity. Indicator fluid moving from the cerebrospinal fluid compartment enables measurements of levels of indicator fluid in blood or urine and assessment of the cranio-spinal cavity's ability to remove molecular substances. The indicator fluids may be contrast agents used for imaging, such as by computed tomography imaging, and magnetic resonance imaging, or imaging utilizing radioactive substances by positron emission tomography, single-photon emission computed tomography or scintigraphy. Using these imaging modalities, the invention describes indicator fluids, systems and methods enabling assessment of movement of substances within, to or from a cerebrospinal fluid, brain or spinal cord compartment of a cranio-spinal cavity, and from the human cranio-spinal cavity to lymphatic pathways or kidneys.

A compound represented by the following general formula (I):wherein R1 and R2 represent an alkyl group or alkenyl group; X1 and X2 represent —O—, or —N(Z)-; Z represents hydrogen atom, or an alkyl group; L represents a divalent bridging group comprising an alkylene group, an alkenylene group, —CO—, —O— and the like wherein number of atoms constituting a chain length of the bridging group is 1 to 10; and Ch represents a partial structure containing 3 or more nitrogen atoms and capable of forming a chelate, and a chelate compound comprising the compound are provided. A vascular lesion can be selectively contrasted by MRI or scintigraphy imaging using a contrast medium comprising liposomes containing said compound or said chelate.

The invention relates to the use of a mixture comprising erbium and praseodymium as a radiation attenuating composition, i.e. as a composition that can attenuate ionising radiation, in particular X- and gamma-type electromagnetic radiation.The invention also relates to a radiation attenuating material comprising an erbium- and praseodymium-based composition, as well as a protective article which provides group or individual protection against ionising radiation and comprises said material.The invention is suitable for use in nuclear medicine (scintigraphy, radiotherapy, etc.), radiology, medical imaging, the nuclear industry, etc.

A new approach to targeting imaging agents to macrophage-rich sites of interest is disclosed. Compositions of the invention are rHDL and HDL-like liposomal compositions, protein constituents of which, apolipoproteins A-I and / or A-II or fragments thereof are used not only as structural but also as targeting agents. This is achieved by certain controlled chemical or enzymatic modification of apolipoproteins A-I or A-II or fragments thereof. Such modification converts these apolipoproteins to substrates for macrophage scavenger receptors and results in the improvement of contrast agent-(HDL / modified apolipoprotein)-particle association with macrophages and / or absorption (uptake) by macrophages when compared to that of the contrast agent-(HDL / apolipoprotein)-particle constructed with non-modified naturally occurring apo A-I. The compositions can be used for noninvasive specific in vivo molecular detection and localization of macrophage-rich sites of interest using imaging techniques such as computed tomography (CT), gamma-scintigraphy, positron emission tomography (PET), single photon emission computed tomography (SPECT), magnetic resonance imaging (MRI).

The invention relates to a method for measuring the kinematics of at least one rotor of an engine (14), especially a turbomachine, characterized in that the measurement is performed by gamma ray scintigraphy, the method comprising steps consisting in providing the rotor with radioactive tracers, and, during the operation of the engine, detecting the gamma rays emitted by said tracers by means of at least two gamma cameras (30).

The present invention discloses indicator fluids, reference indicator fluid, and usage thereof, and systems and methods for assessing movement of molecular substances within, to or from a cerebrospinal fluid, brain or spinal cord compartment of a human cranio-spinal cavity. Indicator fluid moving from the cerebrospinal fluid compartment enables measurements of levels of indicator fluid in blood or urine and assessment of the cranio-spinal cavity's ability to remove molecular substances. The indicator fluids may be contrast agents used for imaging, such as by computed tomography imaging, and magnetic resonance imaging, or imaging utilizing radioactive substances by positron emission tomography, single-photon emission computed tomography or scintigraphy. Using these imaging modalities, the invention describes indicator fluids, systems and methods enabling assessment of movement of substances within, to or from a cerebrospinal fluid, brain or spinal cord compartment of a cranio-spinal cavity, and from the human cranio-spinal cavity to lymphatic pathways or kidneys.

The invention relates to combination comprising a pharmaceutically acceptable preparation of a compound of formula (I), or a pharmaceutically acceptable salt thereof, and a gallium and its use in diagnosis. The invention also pertains to the use of a compound of formula I or a pharmaceutically acceptable salt thereof, for the preparation of a medicament for the treatment of an excess iron overload in the human or animal body whereby said body is undergoing gallium scintigraphy and whereby the treatment removing said excess of iron is interrupted for a period of 2 to 10 days prior to the gallium scintigraphy and resumed after the gallium scintigraphy readings.

A new approach to targeting imaging agents to macrophage-rich sites of interest is disclosed. Compositions of the invention are rHDL and HDL-like liposomal compositions, protein constituents of which, apolipoproteins A-I and / or A-II or fragments thereof are used not only as structural but also as targeting agents. This is achieved by certain controlled chemical or enzymatic modification of apolipoproteins A-I or A-II or fragments thereof. Such modification converts these apolipoproteins to substrates for macrophage scavenger receptors and results in the improvement of contrast agent-(HDL / modified apolipoprotein)-particle association with macrophages and / or absorption (uptake) by macrophages when compared to that of the contrast agent-(HDL / apolipoprotein)-particle constructed with non-modified naturally occurring apo A-I. The compositions can be used for noninvasive specific in vivo molecular detection and localization of macrophage-rich sites of interest using imaging techniques such as computed tomography (CT), gamma-scintigraphy, positron emission tomography (PET), single photon emission computed tomography (SPECT), magnetic resonance imaging (MRI).

The present invention relates to contrast agent enhanced medical ultrasound imaging. In particular, the contrast agents provided are useful for cell imaging and cell therapy, as well as in vivo targeting, drug delivery and perfusion or vascular imaging applications. More specifically, it provides a particle comprising a fluorinated organic compound and a metal. Such particles may be advantageously employed in qualitative or quantitative imaging such as acoustic imaging including photoacoustic and ultrasound imaging, MRI imaging, such as 19F imaging, 1H imaging including T1 and T2 weighted imaging, SPECT, PET, scintigraphy, fluorescence imaging and optical coherence imaging and tomographic applications. This may then be employed in cell labeling, microscopy, histology or for imaging vasculature or perfusion in vivo and in vitro.

The invention relates to a method for measuring the kinematics of at least one rotor of an engine (14), especially a turbomachine, characterised in that the measurement is performed by gamma ray scintigraphy, the method comprising steps consisting in providing the rotor with radioactive tracers, and, during the operation of the engine, detecting the gamma rays emitted by said tracers by means of at least two gamma cameras (30).

The present invention is a method for improving cardiac and / or cardiovascular functions in living subjects after the occurrence of a myocardial and / or cardiovascular disorder, involving tissue damage and / or an ischemic event. The method is a combination stem cell therapy involving a mixture of bone marrow-derived mesenchymal stem cells and bone marrow-derived mononuclear cells surgically implanted by using either a direct or catheter-mediated injection into damaged tissue. Studies have shown that the implant improves blood perfusion in an ischemic tissue and thus contributes to the recovery of cardiac and / or cardiovascular function as assessed by methods of choice, including magnetic resonance imaging (“MRI”), echocardiography, angiography and 99mTc-TF perfusion scintigraphy.

The present invention is directed to benzazepin-1,7-diol-derived compounds (I) for use in the diagnosis of NMDA (N-methyl-D-aspartate) receptor-associated diseases or disorders by positron emission tomography (PET), single-photon emission computed tomography (SPECT), liquid based-scintillation- and / or autoradiography-based assays. The invention also relates to a method for the diagnosis of NMDA receptor-associated diseases or disorders by administering to a patient or a sample of a patient in need of such diagnosis a compound of the invention in an amount effective for PET imaging, SPECT imaging, liquid based-scintillation- and / or autoradiography-based assays of NMDA receptors, recording at least one PET or SPECT scan, liquid based-scintillation or autoradiography result, and diagnosing an NMDA receptor-associated disease or disorder from an abnormal NMDA receptor expression pattern on the PET or SPECT scan, in the liquid based-scintillation or autoradiography result. The present invention also provides a method for evaluating a putative NMDA-receptor antagonist in a liquid scintigraphy detection assay or an autoradiography assay using the compounds of the present invention.

The present invention discloses indicator fluids, reference indicator fluid, and usage thereof, and systems and methods for assessing movement of molecular substances within, to or from a cerebrospinal fluid, brain or spinal cord compartment of a human cranio-spinal cavity. Indicator fluid moving from the cerebrospinal fluid compartment enables measurements of levels of indicator fluid in blood or urine and assessment of the cranio-spinal cavity's ability to remove molecular substances. The indicator fluids may be contrast agents used for imaging, such as by computed tomography imaging, and magnetic resonance imaging, or imaging utilizing radioactive substances by positron emission tomography, single-photon emission computed tomography or scintigraphy. Using these imaging modalities, the invention describes indicator fluids, systems and methods enabling assessment of movement of substances within, to or from a cerebrospinal fluid, brain or spinal cord compartment of a cranio-spinal cavity, and from the human cranio-spinal cavity to lymphatic pathways or kidneys.

Systems and methods are provided for providing improved information, diagnoses and therapies for dyspepsia and gastric emptying disorders based on gastric protein emptying and gastric carbohydrate emptying data.

The present invention is directed to benzazepin-1,7-diol-derived compounds (I) for use in the diagnosis of NMDA (N-methyl-D-aspartate) receptor-associated diseases or disorders by positron emission tomography (PET), single-photon emission computed tomography (SPECT), liquid based-scintillation- and / or autoradiography-based assays. The invention also relates to a method for the diagnosis of NMDA receptor-associated diseases or disorders by administering to a patient or a sample of a patient in need of such diagnosis a compound of the invention in an amount effective for PET imaging, SPECT imaging, liquid based-scintillation- and / or autoradiography-based assays of NMDA receptors, recording at least one PET or SPECT scan, liquid based-scintillation or autoradiography result, and diagnosing an NMDA receptor-associated disease or disorder from an abnormal NMDA receptor expression pattern on the PET or SPECT scan, in the liquid based-scintillation or autoradiography result. The present invention also provides a method for evaluating a putative NMDA-receptor antagonist in a liquid scintigraphy detection assay or an autoradiography assay using the compounds of the present invention.

Methods for assessing an overall digestive health of a patient are provided, which include administering a breath test that uses a label incorporated into proteins, carbohydrates, and lipids and further incorporating the labeled material into a meal which, when cooked, facilitates the binding of the label material to the solid phase matrix of the meal. Methods for assessing digestive functions of a patient are also provided, which includes concurrently administering a breath test and a scintigraphy test that measure gastric emptying in a stomach.