1. A method of acquiring image data with an imaging system, comprising:
positioning a movable single x-ray source tube in a housing, wherein the housing is connected to a mobile cart operable to move the housing from a first operating room to a second operating room;
powering the single x-ray source tube with a first power source having a first power characteristic to emit x-rays at a first selected position relative to the patient;
powering the single x-ray source tube with a second power source having a second power characteristic different from the first power characteristic to emit x-rays relative to the first selected position relative to the patient;
acquiring image data relative to the first selected position at both the first power characteristic and the second power characteristic; and
executing instructions with a processor to reconstruct a three-dimensional model of a portion of the patient at the first selected position with an algebraic iterative technique.
2. The method of claim 1, wherein executing instructions with a processor to reconstruct a three-dimensional model includes an iterative process based on at least an anatomy of the patient and a physiology of the patient.
3. The method of claim 1, wherein the first power characteristic is selected to be at least one of a first voltage of about 40 kV to about 180 kV and a first amperage of about 10 mA to about 500 mA.
4. The method of claim 3, wherein the second power characteristic is selected to be at least one of a second voltage that is about 40 kV to about 60 kV different than the first voltage and a second amperage that is about 20 mA to about 150 mA than the first amperage.
5. The method of claim 4, wherein the three-dimensional model includes dynamic contrast reconstruction based upon a difference in x-ray attenuation differences of a first tissue and a second tissue based on the image data is acquired at the same first selected position by powering the single x-ray source tube at both the first power characteristic and the second power characteristic.
6. The method of claim 5, wherein the three-dimensional model is a model of a heart of the patient, a vasculature of the patient, brain, and combinations thereof.
7. The method of claim 6, further comprising:
identifying a blockage in the three-dimensional modeled vasculature of the patient; and
performing a procedure on the patient to remove the blockage from the patient;
wherein a contrast agent injected into the patient can be imaged in the image data and used in the three-dimensional model.
8. The method of claim 6, further comprising:
performing a procedure on the patient including valve localization, valve replacement, aneurysm correction, and combinations thereof.
9. A method of acquiring image data with an imaging system, comprising:
positioning a movable single x-ray source tube in a housing, wherein the housing is connected to a mobile cart operable to move the housing from a first operating room to a second operating room;
providing a first power source to power the single x-ray source tube with a first power characteristic to emit x-rays relative to a first selected position of the patient;
providing a second power source to power the single x-ray source tube with a second power characteristic different from the first power characteristic to emit x-rays relative to the first selected position of the patient;
gating an acquisition of image data relative to the first selected position at both the first power characteristic and the second power characteristic to acquire the image data at a selected physiological event of the patient; and
executing instructions with a processor to reconstruct a three-dimensional model of a portion of the patient relative to the first selected position with an algebraic iterative technique.
10. The method of claim 9, wherein the physiological even includes respiration, heart beat, or combinations thereof.
11. The method of claim 9, further comprising:
selecting a location of an intervention based on the reconstructed model.
12. The method of claim 11, further comprising:
selecting an intervention to be at least one of an ablation, a stent implant, an angioplasty, or combinations thereof.
13. The method of claim 10, further comprising:
moving at least one of the single x-ray source tube and the housing during the acquisition of the image data.
14. The method of claim 13, wherein moving the at least one of the single x-ray source tube and the housing includes varying the rate of movement of at least one of the single x-ray source tube and the housing over a period of time of the acquisition of image data.
15. The method of claim 14, wherein the varying rate of movement is dependent on the gating of the acquisition of the image data.
16. The method of claim 15, further comprising:
moving at least one or more detectors associated with the single x-ray source tube and a gantry with which the detector and the single x-ray source tube are both associated and are operable to move relative to.
17. The method of claim 13, wherein providing a second power source to power the single x-ray source tube with a second power characteristic different from the first power characteristic to emit x-rays relative to the first selected position of the patient includes emitting the x-rays at the second power characteristic at a different projection than emitting the x-rays with the first power characteristic.
18. A system to acquire image data of a patient with an imaging system with a duel energy source system, comprising:
a source system including,
a single x-ray source tube,
a first power system having a first power characteristic to power the single x-ray source tube to emit x-rays relating to the first power characteristic;
a second power system having a second power characteristic to power the single x-ray source tube to emit x-rays relating to the second power characteristic; and
a switch to switch between the first power system and the second power system to power the single x-ray source tube;
a detector system positioned to detect x-rays from the source system;
a gantry associated with both of the detector system and the source system;
a mobile cart moveably connected to the gantry; and
a control system included with the mobile cart to control movement of all of the gantry, the detector system, and the source system;
wherein image data is operable to be acquired at a plurality of selected positions relative to at least a portion of the patient at both the first power characteristic and the second power characteristic.
19. The system of claim 18, further comprising:
a reconstruction system operable to execute instructions to generate a three-dimensional model of the at least the portion of the patient.
20. The system of claim 19, further comprising:
a pump operable to pump a contrast agent into the at least the portion of the patient.
21. The system of claim 20, wherein the control system is operable to gate the image data acquisition and the movement of all of the gantry, the detector system, and the source system based on an injection time of the contrast agent from the pump.
22. The system of claim 19, further comprising:
a tracking system;
a display device operable to display the three-dimensional model; and
an instrument;
wherein the three-dimensional model is operable to be registered to a patient space of the patient and a location of the instrument relative to the patient is operable to be tracked with the tracking system and a determined location of the instrument based on the tracked location is operable to be displayed on the display device as an icon superimposed on the three-dimensional model.
23. The system of claim 19, further comprising:
a memory system having stored thereon instructions for movement of all of the gantry, the detector system, and the source system;
wherein the control system is operable to execute the instructions stored with the memory system to control the movement of all of the gantry, the detector system, and the source system.
24. The system of claim 18, wherein when the image data is acquired at a plurality of selected positions relative to at least a portion of the patient, a first projection at the first power characteristic is acquired at a first position and a second projection at the second power characteristic is acquired at a second position relative to the patient different from the first position of the first projection due to movement of the detector during switching from the first power characteristic to the second power characteristic.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A semiconductor device comprising:
a heater element;
a first heat sink disposed on one side of the heater element so that the first heat sink thermally connects to the heater element;
a second heat sink disposed on the other side of the heater element so that the second heat sink thermally connects to the heater element;
a resin mold for molding the heater element and the first and second heat sinks; and
a pair of cooling members, each of the first heat sink and the second heat sink being connected to one of the cooling members through an insulation member so that the first and the second heat sinks do not contact the cooling members directly,
wherein the first heat sink includes a first heat radiation surface, which is disposed opposite to the heater element and exposed from the resin mold,
wherein the second heat sink includes a second heat radiation surface, which is disposed opposite to the heater element and exposed from the resin mold,
wherein the first and second heat radiation surfaces have a degree of parallelism therebetween equal to or smaller than 0.2 mm, and
wherein the pair of cooling members are disposed outside of the first and second heat radiation surfaces so that the cooling members sandwich the heater element through the first and second heat sinks.
2. The device according to claim 1,
wherein the degree of parallelism is equal to or smaller than 0.15 mm.
3. The device according to claim 1,
wherein the degree of parallelism is equal to or smaller than 0.1 mm.
4. The device according to claim 1,
wherein the heater element includes a semiconductor chip, which generates heat when the chip works.
5. The device according to claim 1,
wherein the first heat sink and the second heat sink are made of copper, aluminum, tungsten, or molybdenum,
wherein the resin mold is made of epoxy resin, and
wherein the insulation member is made of aluminum nitride.
6. The device according to claim 5,
wherein the insulation member has a plate shape.