[Mristudio-users] gradient table
susumu mori
susumu at mri.jhu.edu
Tue Jul 31 13:31:47 EDT 2012
The gradient table may change depending on the version of the operating
system, but here is what I have.
You have to modify it to the DtiStudio format.
If you have MOSAIC data, then the easiest way is to use the function to
extract the gradient information in the initial opening window.
If you use only the initial 64 rows of this 256-orientation table, I assume
that you can just use the first 64 rows of this table for tensor
calculations.
---------------------------------------------
(0, 0.059010, -0.013002, 0.998173);
(1, 0.070008, 0.157018, 0.985111);
(2, -0.078038, 0.083041, 0.993486);
(3, -0.092987, -0.086988, 0.991860);
(4, 0.046987, -0.178952, 0.982735);
(5, 0.199944, -0.108970, 0.973729);
(6, 0.211021, 0.052005, 0.976097);
(7, 0.210999, 0.212999, 0.953997);
(8, -0.050982, 0.250913, 0.966666);
(9, -0.208056, 0.186050, 0.960259);
(10, -0.355044, 0.120015, 0.927114);
(11, -0.225050, 0.016004, 0.974216);
(12, -0.239998, -0.156999, 0.957994);
(13, -0.107055, -0.253129, 0.961491);
(14, 0.031988, -0.337873, 0.940648);
(15, 0.191053, -0.268075, 0.944264);
(16, 0.333011, -0.202007, 0.921030);
(17, 0.350043, -0.034004, 0.936116);
(18, 0.353962, 0.131986, 0.925900);
(19, 0.321087, 0.303082, 0.897243);
(20, 0.124035, 0.337095, 0.933264);
(21, -0.028007, 0.395092, 0.918214);
(22, -0.189921, 0.343856, 0.919616);
(23, -0.340929, 0.281942, 0.896814);
(24, -0.483028, 0.214012, 0.849048);
(25, -0.492017, 0.052002, 0.869031);
(26, -0.364886, -0.049984, 0.929710);
(27, -0.376988, -0.226993, 0.897972);
(28, -0.251019, -0.327024, 0.911068);
(29, -0.116041, -0.415148, 0.902323);
(30, 0.027007, -0.490130, 0.871231);
(31, 0.176089, -0.413208, 0.893450);
(32, 0.323985, -0.380982, 0.865960);
(33, 0.451026, -0.272016, 0.850049);
(34, 0.477203, -0.106045, 0.872371);
(35, 0.487906, 0.059988, 0.870832);
(36, 0.468001, 0.231001, 0.853003);
(37, 0.426147, 0.394136, 0.814282);
(38, 0.266963, 0.442939, 0.855883);
(39, 0.120952, 0.485807, 0.865657);
(40, -0.024989, 0.534766, 0.844631);
(41, -0.176029, 0.491082, 0.853142);
(42, -0.323126, 0.437171, 0.839328);
(43, -0.463978, 0.371982, 0.803961);
(44, -0.613900, 0.139977, 0.776874);
(45, -0.617975, -0.018999, 0.785968);
(46, -0.493054, -0.117013, 0.862094);
(47, -0.503790, -0.292878, 0.812661);
(48, -0.383865, -0.394861, 0.834705);
(49, -0.253926, -0.486859, 0.835757);
(50, -0.113952, -0.565762, 0.816657);
(51, 0.037997, -0.625950, 0.778937);
(52, 0.182983, -0.543949, 0.818924);
(53, 0.328974, -0.543956, 0.771938);
(54, 0.446988, -0.437988, 0.779979);
(55, 0.565718, -0.320840, 0.759621);
(56, 0.595011, -0.163003, 0.787015);
(57, 0.611304, -0.002001, 0.791393);
(58, 0.600103, 0.163028, 0.783134);
(59, 0.568061, 0.325035, 0.756081);
(60, 0.512003, 0.482003, 0.711004);
(61, 0.362192, 0.543287, 0.757401);
(62, 0.211049, 0.594139, 0.776181);
(63, 0.058967, 0.640642, 0.765572);
(64, -0.119057, 0.637302, 0.761361);
(65, -0.274102, 0.590219, 0.759282);
(66, -0.421992, 0.527990, 0.736986);
(67, -0.560010, 0.454008, 0.693012);
(68, -0.598017, 0.298008, 0.744021);
(69, -0.730015, 0.044001, 0.682014);
(70, -0.718931, -0.123988, 0.683934);
(71, -0.607904, -0.181971, 0.772878);
(72, -0.643781, -0.311894, 0.698762);
(73, -0.524667, -0.433725, 0.732535);
(74, -0.395115, -0.537156, 0.745217);
(75, -0.255897, -0.624749, 0.737703);
(76, -0.106010, -0.694064, 0.712066);
(77, 0.051982, -0.740746, 0.669771);
(78, 0.198017, -0.665057, 0.720062);
(79, 0.338997, -0.682994, 0.646994);
(80, 0.455869, -0.583832, 0.671807);
(81, 0.567210, -0.477177, 0.671249);
(82, 0.670100, -0.360054, 0.649097);
(83, 0.704211, -0.210063, 0.678203);
(84, 0.723245, -0.057019, 0.688233);
(85, 0.720289, 0.101041, 0.686276);
(86, 0.696042, 0.258015, 0.670040);
(87, 0.650084, 0.411053, 0.639082);
(88, 0.582844, 0.557851, 0.590842);
(89, 0.441061, 0.629087, 0.640089);
(90, 0.292091, 0.685213, 0.667208);
(91, 0.136935, 0.732653, 0.666684);
(92, -0.035006, 0.744130, 0.667117);
(93, -0.207001, 0.724004, 0.658004);
(94, -0.361776, 0.671585, 0.646600);
(95, -0.506971, 0.602966, 0.615965);
(96, -0.641109, 0.517088, 0.567097);
(97, -0.690897, 0.366945, 0.622907);
(98, -0.718746, 0.206927, 0.663766);
(99, -0.821800, 0.110973, 0.558864);
(100, -0.820917, -0.048995, 0.568942);
(101, -0.787722, -0.210926, 0.578796);
(102, -0.733198, -0.353096, 0.581157);
(103, -0.632761, -0.470822, 0.614768);
(104, -0.516033, -0.577036, 0.633040);
(105, -0.386042, -0.669073, 0.635069);
(106, -0.244127, -0.745387, 0.620322);
(107, -0.092982, -0.802848, 0.588888);
(108, 0.061971, -0.837608, 0.542746);
(109, 0.207049, -0.774182, 0.598141);
(110, 0.355042, -0.784093, 0.509061);
(111, 0.480125, -0.691179, 0.540140);
(112, 0.596018, -0.585017, 0.550016);
(113, 0.703421, -0.465279, 0.537322);
(114, 0.781234, -0.304091, 0.545163);
(115, 0.812165, -0.145029, 0.565115);
(116, 0.821641, 0.016993, 0.569751);
(117, 0.808928, 0.175984, 0.560950);
(118, 0.774726, 0.330883, 0.538810);
(119, 0.718831, 0.477888, 0.504881);
(120, 0.642730, 0.615741, 0.455808);
(121, 0.509022, 0.697030, 0.505021);
(122, 0.366176, 0.758364, 0.539259);
(123, 0.213039, 0.808148, 0.549100);
(124, 0.045984, 0.830708, 0.554805);
(125, -0.123006, 0.826039, 0.550026);
(126, -0.288131, 0.793361, 0.536244);
(127, -0.439982, 0.734970, 0.515979);
(128, -0.579687, 0.658644, 0.479741);
(129, -0.705004, 0.567003, 0.426002);
(130, -0.764589, 0.424772, 0.484740);
(131, -0.800709, 0.269902, 0.534806);
(132, -0.892958, 0.161992, 0.419980);
(133, -0.900927, 0.002000, 0.433965);
(134, -0.879831, -0.158969, 0.447914);
(135, -0.833019, -0.319007, 0.452010);
(136, -0.747071, -0.470045, 0.470045);
(137, -0.637748, -0.587767, 0.497803);
(138, -0.513898, -0.689863, 0.509899);
(139, -0.377037, -0.775076, 0.507050);
(140, -0.230976, -0.842913, 0.485950);
(141, -0.081983, -0.889811, 0.448905);
(142, 0.074014, -0.912169, 0.403075);
(143, 0.219092, -0.860361, 0.460193);
(144, 0.362034, -0.861080, 0.357033);
(145, 0.490041, -0.778065, 0.393033);
(146, 0.608025, -0.678028, 0.413017);
(147, 0.718996, -0.558997, 0.412998);
(148, 0.810079, -0.408040, 0.421041);
(149, 0.870877, -0.239966, 0.428940);
(150, 0.894955, -0.073996, 0.439978);
(151, 0.896096, 0.088009, 0.435047);
(152, 0.874684, 0.243912, 0.418849);
(153, 0.831860, 0.391934, 0.392934);
(154, 0.768978, 0.530985, 0.355990);
(155, 0.687097, 0.657093, 0.310044);
(156, 0.564702, 0.745606, 0.353813);
(157, 0.432080, 0.812149, 0.392072);
(158, 0.286963, 0.863887, 0.413946);
(159, 0.126973, 0.895811, 0.425910);
(160, -0.039977, 0.903483, 0.426756);
(161, -0.206046, 0.885199, 0.417094);
(162, -0.364892, 0.841750, 0.397882);
(163, -0.510950, 0.775924, 0.369964);
(164, -0.639907, 0.695898, 0.325952);
(165, -0.753755, 0.597806, 0.272911);
(166, -0.818055, 0.471032, 0.330022);
(167, -0.862916, 0.318969, 0.391962);
(168, -0.938282, 0.216065, 0.270081);
(169, -0.956045, 0.055003, 0.288014);
(170, -0.946681, -0.106964, 0.303898);
(171, -0.909812, -0.267945, 0.316935);
(172, -0.839417, -0.429702, 0.332769);
(173, -0.741292, -0.573226, 0.349138);
(174, -0.624959, -0.687955, 0.368976);
(175, -0.493966, -0.784946, 0.373974);
(176, -0.353977, -0.861944, 0.362977);
(177, -0.211958, -0.918819, 0.332934);
(178, -0.066965, -0.953504, 0.293847);
(179, 0.084956, -0.963501, 0.253868);
(180, 0.228069, -0.924279, 0.306092);
(181, 0.333060, -0.925167, 0.182033);
(182, 0.466929, -0.853870, 0.229965);
(183, 0.595385, -0.760492, 0.259168);
(184, 0.709740, -0.647763, 0.276899);
(185, 0.814356, -0.503220, 0.289126);
(186, 0.892778, -0.337916, 0.297926);
(187, 0.938954, -0.162992, 0.302985);
(188, 0.954223, 0.004001, 0.299070);
(189, 0.944039, 0.166007, 0.285012);
(190, 0.909805, 0.321931, 0.261944);
(191, 0.852595, 0.469777, 0.228891);
(192, 0.771212, 0.608168, 0.188052);
(193, 0.644272, 0.742313, 0.184078);
(194, 0.512029, 0.830048, 0.221013);
(195, 0.371982, 0.891957, 0.256988);
(196, 0.218003, 0.934014, 0.283004);
(197, 0.147000, 0.978001, 0.148000);
(198, 0.050005, 0.955101, 0.292031);
(199, -0.120044, 0.950347, 0.287105);
(200, -0.287133, 0.918424, 0.272126);
(201, -0.444757, 0.861529, 0.244866);
(202, -0.582982, 0.786976, 0.201994);
(203, -0.707118, 0.690116, 0.154026);
(204, -0.823874, 0.547916, 0.144978);
(205, -0.895869, 0.373945, 0.239965);
(206, -0.956936, 0.266982, 0.113992);
(207, -0.984969, 0.108997, 0.133996);
(208, -0.987109, -0.053006, 0.151017);
(209, -0.962464, -0.213103, 0.168081);
(210, -0.907966, -0.372986, 0.190993);
(211, -0.822992, -0.528995, 0.206998);
(212, -0.712235, -0.666220, 0.221073);
(213, -0.584746, -0.777662, 0.230900);
(214, -0.445210, -0.866409, 0.226107);
(215, -0.302832, -0.932484, 0.196891);
(216, -0.155030, -0.975188, 0.158031);
(217, 0.003001, -0.992396, 0.123049);
(218, -0.105043, 0.994407, 0.011005);
(219, 0.184970, -0.973842, 0.131979);
(220, 0.279071, -0.960245, 0.007002);
(221, 0.426883, -0.902753, 0.052986);
(222, 0.560256, -0.822376, 0.099045);
(223, 0.687169, -0.716176, 0.122030);
(224, 0.794057, -0.589042, 0.150011);
(225, 0.887491, -0.430238, 0.165091);
(226, 0.951729, -0.254927, 0.170951);
(227, 0.983436, -0.085038, 0.160071);
(228, 0.985899, 0.079992, 0.146985);
(229, 0.961934, 0.241983, 0.126991);
(230, 0.912643, 0.396845, 0.097962);
(231, 0.837257, 0.543167, 0.063019);
(232, 0.723919, 0.687923, 0.051994);
(233, 0.588089, 0.807122, 0.052008);
(234, 0.450862, 0.888729, 0.082975);
(235, 0.304931, 0.944787, 0.119973);
(236, -0.233066, -0.972275, 0.019005);
(237, 0.073019, 0.997258, 0.012003);
(238, -0.026001, 0.988038, 0.152006);
(239, -0.200088, 0.969424, 0.142062);
(240, -0.365992, 0.922979, 0.118997);
(241, -0.510695, 0.856488, 0.074955);
(242, -0.640958, 0.766950, 0.030998);
(243, -0.764977, 0.643980, 0.010000);
(244, 0.857996, -0.512998, 0.026000);
(245, -0.901024, 0.423011, 0.096003);
(246, 0.938499, -0.343182, 0.038020);
(247, 0.983769, -0.177958, 0.022995);
(248, 0.999898, -0.012999, 0.005999);
(249, -0.988633, -0.149944, 0.010996);
(250, -0.949788, -0.310931, 0.034992);
(251, -0.883406, -0.464213, 0.064029);
(252, -0.783923, -0.615940, 0.077992);
(253, -0.660104, -0.746118, 0.087014);
(254, -0.521822, -0.848711, 0.085971);
(255, -0.380935, -0.922844, 0.056990);
On Fri, Jul 27, 2012 at 3:25 AM, <farshidfar at sums.ac.ir> wrote:
> Hello all
> could you do me a fovour, if someone has gradient table for
> Siemense,Aspino,1.5 tesla with 256 independent gradient directions,would
> it be possible to send it to me. And do you know that if i used only 64
> gradient directions of 256,how can i use this gradient table?
> Thank you so much.
> regards
>
>
> -----------------------------------------
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