Methods of coordinating an imaging procedure and an injection procedure

• US 8,160,679 B2
• Filed: 06/03/2009
• Issued: 04/17/2012
• Est. Priority Date: 09/21/1994
• Status: Expired due to Fees

• Current Assignee: Bayer Healthcare LLC (Bayer AG)
• Original Assignee: Medrad Incorporated (Bayer AG)
• Inventors: Uber, Arthur E., Rhinehart, Edward J., Almon-Martin, Rosemary, Griffiths, David M., Sciulli, Francis J., Grumski, Walter, Pagano, Vera, Zelenski, Karen, Hirschman, Alan
• Primary Examiner(s): ROBINSON, DANIEL LEON
• Application Number:
  US12/477,456
• Publication Number:
  US 20090247866A1
• Time in Patent Office: 1,049 Days
• Field of Search: 600431-435
• US Class Current: 600/431
• CPC Class Codes: A61B 6/481 involving the use of contrast agents
• CPC Class Codes: A61B 6/504 for diagnosis of blood vessels, e.g. by angiography
• CPC Class Codes: A61B 8/06 Measuring blood flow measuring volume flow in general G01F, e.g. G01F1/66, G01F1/72; measuring speed of fluids in general G01P5/00
• CPC Class Codes: A61B 8/481 involving the use of contrast agent, e.g. microbubbles introduced into the bloodstream analysis of echo signal exploiting properties of a contrast enhancer in devices for short-range imaging with acoustic waves G01S7/52039
• CPC Class Codes: A61M 2205/581 by audible feedback
• CPC Class Codes: A61M 2205/80 voice-operated command
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 30/20 for handling medical images, e.g. DICOM, HL7 or PACS

Abstract

A method of coordinating an imaging procedure and an injection procedure, the method comprising the steps of providing an injector system having first and second pressurizing units for pressurizing a contrast medium and a diluent for injection into a patient; providing an imaging system for producing an image of an internal region of the patient from a signal resulting from energy applied to the patient; and providing a data interface interconnecting the injector and imaging systems for enabling exchange of digital information therebetween such that the digital information transmitted between the systems is usable to enable closed loop control of at least one of the injection and the imaging procedures during which the contrast medium and the diluent injected into the patient is adjustable so as to achieve a desired level of enhancement within the internal region of the patient of which the images are acquired during the imaging procedure.

Claims

1. A method of coordinating an imaging procedure and an injection procedure, the method comprising the steps of:

(a) providing an injector system having first and second pressurizing units for pressurizing a contrast medium and a diluent, respectively, for injection into a patient during the injection procedure;

(b) providing an imaging system for applying energy to the patient and producing an image or a measurement of an internal region of the patient from a signal resulting from the energy applied to the patient during the imaging procedure; and

(c) providing a data interface interconnecting the injector and imaging systems for enabling exchange of digital information therebetween, the information comprising at least timing data, such that the digital information transmitted between the systems is usable thereby to enable closed loop control of at least one of the injection and the imaging procedures during which the contrast medium and the diluent injected into the patient is adjustable so as to achieve a desired level of enhancement therewith within the internal region of the patient of which the images are acquired during the imaging procedure.

2. The method of claim 1 wherein the closed loop control is of the injection procedure and is based upon at least one of (i) selected portions of the digital information from the imaging system, (ii) selected portions of the digital information from the injector system, and (iii) a physiological condition of the patient obtained from a sensor thereof as part of the digital information.

3. The method of claim 1 wherein the closed loop control is of the imaging procedure and is based upon at least one of (i) selected portions of the digital information from the injector system, (ii) selected portions of the digital information from the imaging system, and (iii) a physiological condition of the patient obtained from a sensor thereof as part of the digital information.

4. The method of claim 1 wherein at least some of the digital information transmitted from the imaging system is usable by the injector system to modify one or more parameters of the injection.

5. The method of claim 4 wherein the injection parameters include at least one of concentration, flow rate, timing, volume, pressure, temperature, time since preparation, brand, type, number of phases, sequencing of mediums, therapeutic progress, and patient recirculation related data.

6. The method of claim 4 wherein the closed loop control enables the injection parameters to be adjusted based on one or more physiological parameters of the patient.

7. The method of claim 4 wherein the injection parameters are stored for use for subsequent or other injection procedures.

8. The method of claim 1 wherein at least some of the digital information transmitted from the injector system is usable by the imaging system to modify one or more parameters of the imaging system.

9. The method of claim 8 wherein the imaging parameters include at least one of power in the energy sent into the patient, time during which the energy is applied to the patient, gain of an amplifier which receives the signal from the patient, or speed at which the energy is scanned across the patient.

10. The method of claim 8 wherein the closed loop control enables the imaging parameters to be adjusted based on one or more physiological parameters of the patient.

11. The method of claim 1 wherein at least some of the digital information transmitted from the imaging system is usable by the injector system to modify one or more parameters of the imaging subsystem.

12. The method of claim 1 wherein the digital information includes control parameters, the control parameters comprising at least one of hold injection, start injection, start scan, stop injection, stop scan, reset injector subsystem, and gating control operation based on feedback from a physiological parameter of the patient.