From 9082aa6ddd6c67d26fcf1cf1258d869c683152a7 Mon Sep 17 00:00:00 2001
From: evamariie <106267274+evamariie@users.noreply.github.com>
Date: Sun, 16 Jun 2024 19:04:09 +0200
Subject: [PATCH] Inserted Input Data markdown section

---
 preprocessing/preprocessing_tutorial.ipynb | 49 ++++++++++++----------
 1 file changed, 28 insertions(+), 21 deletions(-)

diff --git a/preprocessing/preprocessing_tutorial.ipynb b/preprocessing/preprocessing_tutorial.ipynb
index 7c3f904..68a0478 100644
--- a/preprocessing/preprocessing_tutorial.ipynb
+++ b/preprocessing/preprocessing_tutorial.ipynb
@@ -37,13 +37,13 @@
    "source": [
     "\n",
     "### Setup Colab environment\n",
-    "If you installed the packages and requirements on your own machine, you can skip this section and start from the import section. Otherwise you can follow and execute the tutorial on your browser. In order to start working on the notebook, click on the following button, this will open this page in the Colab environment and you will be able to execute the code on your own.\n",
+    "If you installed the packages and requirements on your own machine, you can skip this section and start from the import section. Otherwise, you can follow and execute the tutorial on your browser. In order to start working on the notebook, click on the following button, this will open this page in the Colab environment and you will be able to execute the code on your own.\n",
     "\n",
     "<a target=\"_blank\" href=\"https://colab.research.google.com/github/BrainLesion/tutorials/blob/main/preprocessing/preprocessing_tutorial.ipynb\">\n",
     "  <img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/>\n",
     "</a>\n",
     "\n",
-    "Now that you are visualizing the notebook in Colab, run the next cell to install the packages we will use. There are few things you should follow in order to properly set the notebook up:\n",
+    "Now that you are visualizing the notebook in Colab, run the next cell to install the packages we will use. There are a few things you should follow in order to properly set the notebook up:\n",
     "1. Warning: This notebook was not authored by Google. Click on 'Run anyway'.\n",
     "1. When the installation commands are done, there might be \"Restart runtime\" button at the end of the output. Please, click it.\n"
    ]
@@ -178,23 +178,30 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Imports"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "## Raw Input data\n",
-    "TODO describe raw input data. Two exams from TCIA/TCGA with T1, T1c, T2, T2-FLAIR with skull etc.\n",
-    "TODO visualize it"
+    "## Import raw input data\n",
+    "\n",
+    "Raw input data require\n",
+    "- exam with skull and 4 sequences (T1, T1c, T2, T2-FLAIR), only one file each (in total 4 files) \n",
+    "    - file names must end with \"*t1.nii.gz\", \"*t1c.nii.gz\", \"*t2.nii.gz\" and \"*fla.nii.gz\"\n",
+    "    - [Nifti \".nii.gz\"](https://brainder.org/2012/09/23/the-nifti-file-format/) file type \n",
+    "- Each exam (4 files) needs to be placed in an individual folder within the data folder \n",
+    "```<this repository>/preprocessing/data/```. \n",
+    "\n",
+    "The structure is shown using two example exams:\n",
+    "```\n",
+    "preprocessing\n",
+    "├── data\n",
+    "│   ├── TCGA-DU-7294\n",
+    "│   │   ├── *_t1c.nii.gz\n",
+    "│   │   ├── *_t1.nii.gz\n",
+    "│   │   ├── *_t2.nii.gz\n",
+    "│   │   ├── *_fla.nii.gz\n",
+    "│   ├── OtherEXampleFromTCIA\n",
+    "│   │   ├── *_t1c.nii.gz\n",
+    "│   │   ├── *_t1.nii.gz\n",
+    "│   │   ├── *_t2.nii.gz\n",
+    "│   │   ├── *_fla.nii.gz\n",
+    "```\n"
    ]
   },
   {
@@ -202,7 +209,7 @@
    "metadata": {},
    "source": [
     "## Preprocessing\n",
-    "BraTS challenge algorithms expect co-registered, skullstripped files in SRI-24 space, to achieve this preprocessing is required.\n",
+    "BraTS challenge algorithms expect co-registered, skull-stripped files in SRI-24 space, to achieve this preprocessing is required.\n",
     "Instead of using the vanilla preprocessing pipeline from BraTS Toolkit, we recommend using the new [BrainLes preprocessing package](https://github.com/BrainLesion/preprocessing/tree/main/brainles_preprocessing).\n",
     "\n",
     "<!-- For more details about preprocessing see the dedicated tutorial at TODO -->"
@@ -212,7 +219,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "First, we define a function that procoesses an exam."
+    "First, we define a function that processes an exam."
    ]
   },
   {