Preclinical PCASL Pipeline
==========================

**Runner:** ``pyasl.pipelines.preclinical_pcasl_pipeline.run_preclinical_pcasl_pipeline``

**Purpose.** Full preclinical pCASL chain (Bruker or NIfTI), including steady-state
trim, control/label split, M0, PLD slice adjustment, relative CBF, brain mask, and saves.

Inputs
------

- ``data_dir`` (used for relative path resolution), ``config_path``.

YAML Example
------------

.. code-block:: yaml

    type: pcasl
    steps:
      - module: BrukerLoader
        params: { expno: 18, procno: 1 }   # root is injected automatically
      - module: SteadyStateTrim
        params: { trim: 2 }
      - module: ControlLabelSplit
        params: { control_first: true }
      - module: MotionCheck
      - module: DiffImage
      - module: ComputeM0
        params: { TR: from_meta, T1t: 1900 }
      - module: SlicePLDAdjust
        params: { SGap: 31, T1blood: 2800 }
      - module: CBFRelative
        params: { vmax: 10 }
      - module: BrainMask
        params: { thres: 0.2, open_iter: 2, close_iter: 2 }
      - module: SaveOutputs