# US 8,786,283 B2 · Whole-body coil arrangement for an open magnetic resonance scanner for use with a second diagnostic and/or therapeutic modality > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,786,283 B2 - Document ID: US8786283B2 - Status: Granted - Kind: B2 - Application number: 12/858,663 - Filed: 2010-08-18 - Published: 2011-02-24 - Granted: 2014-07-22 - Earliest claimed: 2009-08-24 - Assignees: Siemens Aktiengesellschaft - Applicants: Patrick Gross; Bela Vajko - Inventors: Patrick Gross; Bela Vajko - Web page: https://patentgrep.com/patent/US8786283B2 ## CPC - G01R 33/4808: {Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]} - A61B 6/037: {Emission tomography} - G01R 33/34076: {Birdcage coils} - A61B 6/4417: {related to combined acquisition of different diagnostic modalities} - A61B 6/5247: {combining images from an ionising-radiation diagnostic technique and a non-ionising radiation diagnostic technique, e.g. X-ray and ultrasound} - A61N 2005/1055: {using magnetic resonance imaging [MRI]} - G01R 33/481: {MR combined with positron emission tomography [PET] or single photon emission computed tomography [SPECT]} - G01R 33/4812: {MR combined with X-ray or computed tomography [CT]} - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) ## Abstract A whole-body coil arrangement for an open magnetic resonance scanner for use with a second diagnostic and/or therapeutic modality is proposed. The whole-body coil arrangement includes at least one coil conductor and a radio-frequency shield. The whole-body coil arrangement is embodied at least in part as essentially transparent to the second modality. ## Claims ### Claim 1 A whole-body coil arrangement for an open magnetic resonance scanner for use with a second diagnostic and/or therapeutic modality, comprising: a coil conductor; spaced-apart magnet sections; a radio-frequency shield extending through bores of the spaced apart magnet sections that covers an open area between the spaced apart magnet sections; and a plastic cylindrical carrier element; wherein the coil conductor is constructed from a metal layer applied to an inside surface of the carrier element, wherein a thickness of the metal layer is chosen according to a penetration depth of the second diagnostic and/or therapeutic modality; wherein the radio-frequency shield is at least partially a fine-meshed grid and is applied to a surface of the carrier element opposite the inside surface; wherein the coil conductor and/or the radio frequency shield consists of aluminum; wherein the second diagnostic and/or therapeutic modality comprises an emitter for generating radiations, and wherein the whole-body coil arrangement is configured to be at least partially transparent in the open area such that the whole-body coil arrangement is penetrable by the radiations generated by the second diagnostic and/or therapeutic modality. ### Claim 2 (depends on 1) The whole-body coil arrangement as claimed in claim 1, wherein the whole-body coil arrangement is configured to be transparent in the open area of the open magnetic resonance scanner. ### Claim 3 (depends on 1) The whole-body coil arrangement as claimed in claim 1, wherein the whole-body coil arrangement is configured to be essentially transparent. ### Claim 4 (depends on 1) The whole-body coil arrangement as claimed in claim 1, wherein an attenuation property of the whole-body coil arrangement is homogenous in the transparent area. ### Claim 5 (depends on 1) The whole-body coil arrangement as claimed in claim 1, wherein the whole-body coil arrangement is a cylinder comprising two cylindrical and/or rectangular coaxial magnet sections. ### Claim 6 (depends on 1) The whole-body coil arrangement as claimed in claim 1, further comprising a rotator for rotating the whole-body coil arrangement so that the coil conductor is rotated out of influence of the second diagnostic and/or therapeutic modality. ### Claim 7 An open magnetic resonance scanner, comprising: spaced apart magnet sections; and a whole-body coil arrangement for use with a second diagnostic and/or therapeutic modality comprising an emitter for generating radiations, the whole-body coil arrangement comprising: a coil conductor; a radio-frequency shield extending through bores of the spaced apart magnet sections of the open magnetic resonance scanner that covers an open area between the spaced apart sections; and a plastic cylindrical carrier element; wherein the coil conductor is constructed from a metal layer applied to an inside surface of the carrier element, wherein a thickness of the metal layer is chosen according to a penetration depth of the second diagnostic and/or therapeutic modality; wherein the radio-frequency shield is at least partially a fine-meshed grid and is applied to a surface of the carrier element opposite the inside surface; wherein the coil conductor and/or the radio frequency shield consists of aluminum; wherein the whole-body coil arrangement is configured to be at least partially transparent in the open area such that the whole-body coil arrangement is penetrable by the radiations generated by the second diagnostic and/or therapeutic modality. ### Claim 8 (depends on 7) The open magnetic resonance scanner as claimed in claim 7, wherein the whole-body coil arrangement is mounted to be rotatable. ### Claim 9 (depends on 7) The open magnetic resonance scanner as claimed in claim 7, wherein the whole-body coil arrangement is a cylinder. ### Claim 10 A medical device, comprising: an open magnetic resonance scanner comprising a whole-body coil arrangement and spaced apart magnet sections, the whole-body coil arrangement comprising: a coil conductor, a radio-frequency shield extending through bores of the spaced apart magnet sections of the open magnetic resonance scanner that covers an open area between the spaced apart magnet sections; and a plastic cylindrical carrier element; wherein the coil conductor is constructed from a metal layer applied to an inside surface of the carrier element; wherein the radio-frequency shield is at least partially a fine-meshed grid and is applied to a surface of the carrier element opposite the inside surface; wherein the coil conductor and/or the radio frequency shield consists of aluminum; and a second diagnostic and/or therapeutic modality comprising an emitter for generating radiations, wherein a thickness of the metal layer is chosen according to a penetration depth of the second diagnostic and/or therapeutic modality, wherein the whole-body coil arrangement is configured to be at least partially transparent in the open area such that the whole-body coil arrangement is penetrable by the radiations generated by the second diagnostic and/or therapeutic modality. ### Claim 11 (depends on 10) The medical device as claimed in claim 10, wherein the second modality is a beta radiation modality and/or an X-ray radiation modality.