Abstract: The invention relates to a device for diagnosis and/or therapy of a selected portion of a body by optical reflectance or optical transmission. The device according to the invention has a laminar body (12) containing a tissue-facing surface (13). The laminar body (12) integrally forms a transmitter opening destined to accommodate a transmitter fiber terminal (24) and a receiver opening destined to accommodate a receiver fiber terminal (38a, 38b). Furthermore, it contains annular light shielding means for shielding said transmitter fiber terminal (24) and receiver fiber terminal (38a, 38b) from ambient light sources. Thereby, said annular transmitter and receiver light shielding means are formed as an annular transmitter light shielding bulge (46) and an annular receiver light shielding bulge (48a, 48b), respectively, which are firmly arranged with respect to said laminar body (12), whereby their free ends are protruding with respect to said tissue-facing surface (13) of said laminar body (12).

Abstract: A method for acquiring an image or spectrum of a subject or object residing within the magnetic field of a magnetic resonance apparatus, comprises the steps of: executing a predetermined pulse sequence for applying gradient magnetic fields and for coupling in electromagnetic excitation pulses to induce nuclear magnetic resonance within the subject or object; detecting an electromagnetic signal resulting from said magnetic resonance; and constructing at least one image or magnetic resonance spectrum of said subject or object from said detected electromagnetic signal. According to the invention, said coupling in of the electromagnetic excitation pulse and/or said detecting of the electromagnetic signal are carried out substantially by means of travelling electromagnetic waves.

Abstract: The invention relates to a device for diagnosis and/or therapy of a selected portion of a body by optical reflectance or optical transmission. The device according to the invention has a laminar body (12) containing a tissue-facing surface (13). The laminar body (12) integrally forms a transmitter opening destined to accommodate a transmitter fibre terminal (24) and a receiver opening destined to accommodate a receiver fibre terminal (38a, 38b). Furthermore, it contains annular light shielding means for shielding said transmitter fibre terminal (24) and receiver fibre terminal (38a, 38b) from ambient light sources. Thereby, said annular transmitter and receiver light shielding means are formed as an annular transmitter light shielding bulge (46) and an annular receiver light shielding bulge (48a, 48b), respectively, which are firmly arranged with respect to said laminar body (12), whereby their free ends are protruding with respect to said tissue-facing surface (13) of said laminar body (12).

Abstract: A method for acquiring an image or spectrum of a subject or object residing within the magnetic field of a magnetic resonance apparatus, comprises the steps of: executing a predetermined pulse sequence for applying gradient magnetic fields and for coupling in electromagnetic excitation pulses to induce nuclear magnetic resonance within the subject or object; detecting an electromagnetic signal resulting from said magnetic resonance; and constructing at least one image or magnetic resonance spectrum of said subject or object from said detected electromagnetic signal. According to the invention, said coupling in of the electromagnetic excitation pulse and/or said detecting of the electromagnetic signal are carried out substantially by means of travelling electromagnetic waves.