CN1284122C - 使用一个或多个微处理器的快速并行锥形线束重建系统和方法 - Google Patents
使用一个或多个微处理器的快速并行锥形线束重建系统和方法 Download PDFInfo
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
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- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
- A61B6/4064—Arrangements for generating radiation specially adapted for radiation diagnosis specially adapted for producing a particular type of beam
- A61B6/4085—Cone-beams
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
- G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
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- G—PHYSICS
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- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/58—Testing, adjusting or calibrating thereof
- A61B6/582—Calibration
- A61B6/583—Calibration using calibration phantoms
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- G—PHYSICS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
机器 | CPU频率 | 物理内存 | SIMD/ILP支持 |
Pentium III | 500MHz | 640MB | MMX,SSE |
带有11个椭圆的Shepp Logan幻影 | ||||||||
a | b | c | x0 | y0 | z0 | α | β | μ |
0.6900 | 0.920 | 0.900 | 0.000 | 0.000 | 0.000 | 0.0 | 0.00 | 200 |
0.6624 | 0.874 | 0.880 | 0.000 | 0.000 | 0.000 | 0.0 | 0.00 | -0.98 |
0.4100 | 0.160 | 0.210 | -0.22 | 0.000 | -0.25 | -72.0 | 0.00 | -0.02 |
0.3100 | 0.110 | 0.220 | 0.220 | 0.000 | -0.25 | 72.0 | 0.00 | -0.02 |
0.2100 | 0.250 | 0.500 | 0.000 | 0.350 | -0.25 | 0.00 | 0.00 | 0.01 |
0.0460 | 0.046 | 0.046 | 0.000 | 0.100 | -0.25 | 0.00 | 0.00 | 0.02 |
0.0460 | 0.023 | 0.020 | -0.08 | -0.605 | -0.25 | 0.00 | 0.00 | 0.01 |
0.0460 | 0.023 | 0.020 | 0.060 | -0.605 | -0.25 | 90.0 | 0.00 | 0.01 |
0.0560 | 0.040 | 0.100 | 0.060 | -0.105 | 0.625 | 90.0 | 0.00 | 0.02 |
0.0560 | 0.056 | 0.100 | 0.000 | -0.100 | 0.625 | 0.00 | 0.00 | -0.02 |
0.0230 | 0.023 | 0.023 | 0.000 | -0.605 | -0.25 | 0.00 | 0.00 | 0.01 |
带有11个柱面的柱面幻影 | ||||||||
a | b | c | x0 | y0 | z0 | α | β | μ |
0.6900 | 0.6900 | 0.900 | 0.000 | 0.000 | 0.000 | 0.00 | 0.00 | 200 |
0.6624 | 0.6624 | 0.880 | 0.000 | 0.000 | 0.000 | 0.00 | 0.00 | -1.00 |
0.0800 | 0.0800 | 0.800 | 0.000 | 0.000 | 0.000 | 0.00 | 0.00 | 0.05 |
0.0800 | 0.0800 | 0.800 | 0.250 | 0.000 | 0.000 | 0.00 | 0.00 | 0.20 |
0.0800 | 0.0800 | 0.800 | 0.500 | 0.000 | 0.000 | 0.00 | 0.00 | -0.20 |
0.0800 | 0.0800 | 0.800 | -0.25 | 0.000 | 0.000 | 0.00 | 0.00 | 0.20 |
0.0800 | 0.0800 | 0.800 | -0.50 | 0.000 | 0.000 | 0.00 | 0.00 | -0.20 |
0.0800 | 0.0800 | 0.800 | 0.000 | 0.25 | 0.000 | 0.00 | 0.00 | 0.20 |
0.0800 | 0.0800 | 0.800 | 0.000 | 0.50 | 0.000 | 0.00 | 0.00 | -0.20 |
0.0800 | 0.0800 | 0.800 | 0.000 | -0.25 | 0.000 | 0.00 | 0.00 | 0.20 |
0.0800 | 0.0800 | 0.800 | 0.000 | 0.50 | 0.000 | 0.00 | 0.00 | -0.20 |
过滤模式 | 4N ext | SSE 4N | 2N ext | SSE 2N |
时间(秒) | 146.891 | 58.163 | 78.753 | 35.310 |
加速 | 2.5255 | 2.2303 |
切片和参数 | 普通FD | PF | HD | HE-HD | SSEPF | HE-PF | |
64 | 时间(秒) | 870 | 618 | 263 | 166 | 169 | 148 |
加速 | 1.0 | 1.408 | 3.308 | 5.241 | 5.148 | 5.878 | |
28 | 时间(秒) | I799 | 1256 | 529 | 348 | 349 | 308 |
加速 | 1.0 | 1.432 | 3.401 | 5.170 | 5.155 | 5.841 | |
256 | 时间(秒) | 3288 | 2424 | 1040 | 681 | 744 | 671 |
加速 | 1.0 | 1.356 | 3.149 | 4.828 | 4.419 | 4.900 | |
512 | 时间(秒) | 6562 | 4714 | 2047 | 1516 | 1634 | 1101 |
加速 | 1.0 | 1.392 | 3.206 | 4.328 | 4.016 | 5.960 |
方法 | 切片数量 | ||||||
1 | 32 | 64 | 128 | 256 | 512 | ||
HE-PF | 时间(秒) | 4.126 | 68 | 148 | 308 | 671 | 1101 |
tunit(纳秒) | 54.6 | 28.1 | 30.6 | 31.9 | 34.7 | 28.4 | |
HE-HD | 时间(秒) | 5.033 | 76 | 166 | 348 | 681 | 1516 |
tunit(纳秒) | 66.6 | 31.6 | 34.4 | 36.0 | 35.2 | 39.2 |
Claims (33)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/784,331 US6477221B1 (en) | 2001-02-16 | 2001-02-16 | System and method for fast parallel cone-beam reconstruction using one or more microprocessors |
US09/784,331 | 2001-02-16 |
Publications (2)
Publication Number | Publication Date |
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CN1491404A CN1491404A (zh) | 2004-04-21 |
CN1284122C true CN1284122C (zh) | 2006-11-08 |
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CNB028050894A Expired - Lifetime CN1284122C (zh) | 2001-02-16 | 2002-02-13 | 使用一个或多个微处理器的快速并行锥形线束重建系统和方法 |
Country Status (6)
Country | Link |
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US (1) | US6477221B1 (zh) |
EP (1) | EP1366469B1 (zh) |
CN (1) | CN1284122C (zh) |
AU (1) | AU2002251922B2 (zh) |
CA (1) | CA2438387A1 (zh) |
WO (1) | WO2002067223A2 (zh) |
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- 2002-02-13 CA CA002438387A patent/CA2438387A1/en not_active Abandoned
- 2002-02-13 WO PCT/US2002/004183 patent/WO2002067223A2/en not_active Application Discontinuation
- 2002-02-13 EP EP02720960.0A patent/EP1366469B1/en not_active Expired - Lifetime
- 2002-02-13 CN CNB028050894A patent/CN1284122C/zh not_active Expired - Lifetime
- 2002-02-13 AU AU2002251922A patent/AU2002251922B2/en not_active Ceased
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101664583B (zh) * | 2009-09-09 | 2012-05-09 | 深圳市海博科技有限公司 | 基于cuda的剂量计算优化方法和系统 |
CN102877828A (zh) * | 2012-09-09 | 2013-01-16 | 山西山地物探技术有限公司 | 一种三维多井联合井地ct成像方法 |
Also Published As
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AU2002251922B2 (en) | 2008-01-03 |
US20020154727A1 (en) | 2002-10-24 |
EP1366469B1 (en) | 2017-10-04 |
EP1366469A2 (en) | 2003-12-03 |
CN1491404A (zh) | 2004-04-21 |
WO2002067223A3 (en) | 2002-10-24 |
US6477221B1 (en) | 2002-11-05 |
CA2438387A1 (en) | 2002-08-29 |
WO2002067223A2 (en) | 2002-08-29 |
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