diff --git a/Modules/Pharmacokinetics/test/mitkStandardToftsModelTest.cpp b/Modules/Pharmacokinetics/test/mitkStandardToftsModelTest.cpp
index 99788ee4d2..5b0c907166 100644
--- a/Modules/Pharmacokinetics/test/mitkStandardToftsModelTest.cpp
+++ b/Modules/Pharmacokinetics/test/mitkStandardToftsModelTest.cpp
@@ -1,162 +1,162 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 // Testing
 #include "mitkTestingMacros.h"
 #include "mitkTestFixture.h"
 
 //MITK includes
 #include "mitkVector.h"
 #include "mitkStandardToftsModel.h"
 #include "mitkAIFBasedModelBase.h"
 
 class mitkStandardToftsModelTestSuite : public mitk::TestFixture
 {
   CPPUNIT_TEST_SUITE(mitkStandardToftsModelTestSuite);
   MITK_TEST(GetModelDisplayNameTest);
   MITK_TEST(GetModelTypeTest);
   MITK_TEST(GetParameterNamesTest);
   MITK_TEST(GetNumberOfParametersTest);
   MITK_TEST(GetParameterUnitsTest);
   MITK_TEST(GetDerivedParameterNamesTest);
   MITK_TEST(GetNumberOfDerivedParametersTest);
   MITK_TEST(GetDerivedParameterUnitsTest);
   MITK_TEST(ComputeModelfunctionTest);
   MITK_TEST(ComputeDerivedParametersTest);
   CPPUNIT_TEST_SUITE_END();
 
 private:
   mitk::StandardToftsModel::Pointer m_testmodel;
   mitk::ModelBase::ModelResultType m_output;
   mitk::ModelBase::DerivedParameterMapType m_derivedParameters;
 
 public:
   void setUp() override
   {
-    mitk::ModelBase::TimeGridType m_grid(60);
+    mitk::ModelBase::TimeGridType m_grid(22);
     mitk::ModelBase::ParametersType m_testparameters(2);
-    mitk::AIFBasedModelBase::AterialInputFunctionType m_arterialInputFunction (60);
+    mitk::AIFBasedModelBase::AterialInputFunctionType m_arterialInputFunction (22);
 
     m_testparameters[mitk::StandardToftsModel::POSITION_PARAMETER_Ktrans] = 35.0;
     m_testparameters(mitk::StandardToftsModel::POSITION_PARAMETER_ve) = 0.5;
 
     for (int i = 0; i < 22; ++i)
     {
       // time grid in seconds, 14s between frames
       m_grid[i] = (double)14 * i;
     }
 
     // AIF from Weinmann, H. J., Laniado, M., and W.Mützel (1984). Pharmacokinetics of GD - DTPA / dimeglumine after intravenous injection into healthy volunteers. Phys Chem Phys Med NMR, 16(2) : 167–72.
     int D = 1;
     double a1 = 3.99;
     double m1 = 0.144;
     double a2 = 4.78;
     double m2 = 0.0111;
     for (int i = 0; i < 22; ++i)
     {
       if (i < 5)
         m_arterialInputFunction[i] = 0;
       else
         m_arterialInputFunction[i] = D * (a1 * exp(-m1 * m_grid[i]) + a2 * exp(-m2 * m_grid[i]));
     }
 
     m_testmodel = mitk::StandardToftsModel::New();
     m_testmodel->SetTimeGrid(m_grid);
     m_testmodel->SetAterialInputFunctionValues(m_arterialInputFunction);
     m_testmodel->SetAterialInputFunctionTimeGrid(m_grid);
 
     //ComputeModelfunction is called within GetSignal(), therefore no explicit testing of ComputeModelFunction()
     m_output = m_testmodel->GetSignal(m_testparameters);
     m_derivedParameters = m_testmodel->GetDerivedParameters(m_testparameters);
   }
 
   void tearDown() override
   {
     m_testmodel = nullptr;
     m_output.clear();
     m_derivedParameters.clear();
   }
 
   void GetModelDisplayNameTest()
   {
     m_testmodel->GetModelDisplayName();
     CPPUNIT_ASSERT_MESSAGE("Checking model display name.", m_testmodel->GetModelDisplayName() == "Standard Tofts Model");
   }
 
 
   void GetModelTypeTest()
   {
     CPPUNIT_ASSERT_MESSAGE("Checking model type.", m_testmodel->GetModelType() == "Perfusion.MR");
   }
 
 
   void GetParameterNamesTest()
   {
     mitk::StandardToftsModel::ParameterNamesType parameterNames;
     parameterNames.push_back("KTrans");
     parameterNames.push_back("ve");
     CPPUNIT_ASSERT_MESSAGE("Checking parameter names.", m_testmodel->GetParameterNames() == parameterNames);
   }
 
   void GetNumberOfParametersTest()
   {
     CPPUNIT_ASSERT_MESSAGE("Checking number of parameters in model.", m_testmodel->GetNumberOfParameters() == 2);
   }
 
 
   void GetParameterUnitsTest()
   {
     mitk::StandardToftsModel::ParamterUnitMapType parameterUnits;
     parameterUnits.insert(std::make_pair("KTrans", "ml/min/100ml"));
     parameterUnits.insert(std::make_pair("ve", "ml/ml"));
 
     CPPUNIT_ASSERT_MESSAGE("Checking parameter units.", m_testmodel->GetParameterUnits() == parameterUnits);
   }
 
   void GetDerivedParameterNamesTest()
   {
     mitk::StandardToftsModel::ParameterNamesType derivedParameterNames;
 
     derivedParameterNames.push_back("kep");
 
     CPPUNIT_ASSERT_MESSAGE("Checking derived parameter names.", m_testmodel->GetDerivedParameterNames() == derivedParameterNames);
   }
 
   void GetNumberOfDerivedParametersTest()
   {
     CPPUNIT_ASSERT_MESSAGE("Checking number of parameters in model.", m_testmodel->GetNumberOfDerivedParameters() == 1);
   }
 
   void GetDerivedParameterUnitsTest()
   {
     mitk::StandardToftsModel::ParamterUnitMapType derivedParameterUnits;
     derivedParameterUnits.insert(std::make_pair("kep", "1/min"));
 
     CPPUNIT_ASSERT_MESSAGE("Checking parameter units.", m_testmodel->GetDerivedParameterUnits() == derivedParameterUnits);
   }
 
   void ComputeModelfunctionTest()
   {
     CPPUNIT_ASSERT_MESSAGE("Checking signal at time frame 0.", mitk::Equal(0.0, m_output[0], 1e-6, true) == true);
     CPPUNIT_ASSERT_MESSAGE("Checking signal at time frame 5.", mitk::Equal(0.085056, m_output[5], 1e-6, true) == true);
     CPPUNIT_ASSERT_MESSAGE("Checking signal at time frame 10.", mitk::Equal(0.442948, m_output[10], 1e-6, true) == true);
     CPPUNIT_ASSERT_MESSAGE("Checking signal at time frame 20.", mitk::Equal(0.254551, m_output[20], 1e-6, true) == true);
   }
 
   void ComputeDerivedParametersTest()
   {
     CPPUNIT_ASSERT_MESSAGE("Checking kep.", mitk::Equal(70.0, m_derivedParameters["kep"], 1e-6, true) == true);
   }
 
 };
 
 MITK_TEST_SUITE_REGISTRATION(mitkStandardToftsModel)