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Make the most of an additional building

How MD Anderson saved two clinical spaces is a proton therapy center and laid the groundwork for future improvements

Space optimization and efficiency

The MD Anderson Cancer Center Proton Therapy Center is one of its kind in the United States.

This advanced form of radiation treatment uses a beam of proton to give radiation directly to the tumor, destroying cancer cells and preventing damage to healthy tissue.

But this method of treatment and its equipment also present some challenges: a proton accelerator, a light line and a three-story high porch provide treatment in only four rooms, and the beam can only be approached. With a new addition already planned incorporation for the Proton Therapy Center, MD Anderson wanted to optimize the space between buildings and answer important questions about their possibilities and capabilities.

To do this, they used FlexSim Healthcare to build a functional computer model of the current and proposed expansion of the centre.
Combining the old and the new

These two buildings will operate together. Because of this, it was important to consider both the existing building and the planned enlargement within the model. After importing CAD drawings for a real-scale design, MD Anderson completed its model with patient arrivals, processing times and staff schedules. To this were added the underlying logic, including room/machine assignments, patient flow and process information, and walking trails.

Accurate models mean reliable results

MD Anderson was able to build a reliable model by collecting historical data and interviewing experts in the field. They took account of variability and outliers by adjusting the data to statistical distributions. And to ensure that the model was valid and adequately mimic the real-world system, MD Anderson used key metrics such as performance and treatment times, and also held executive facial validation meetings with the first line.


They could now learn from the model: test the volume levels of 10-year-old patients based on current and future capacity, ensure adequate capacity and optimize space in both buildings.

More space now and more results to come

An initial discovery was the low use of clinical halls. The enlargement architect had originally proposed six new clinical halls, but MD Anderson discovered that four would be more than enough for the volume of patients. It is a potential savings of tens of thousands in construction costs, in addition to a valuable additional space that is now open for other uses. They were also able to confirm that there will be enough room to maintain all clinical activity in the current building (i.e. consultations, follow-ups).

The next steps of MD Anderson are to use the model to test more designs and ideas. What if 80% of patients were treated in the new building? What if paediatric patients stay in the current building? How would a connection between buildings, such as a bridge or tunnel, affect the system and the satisfaction of patients and staff? These questions can be answered with the same model, which will generate significant future benefits.
Bastian Solutions was also able to successfully manage communication between logic created using Process Flow and 3D space. The 3D component of the model is essential for dimensioning the installation and its conveyors and also to visually validate what is happening. Bastian Solutions made extensive use of FlexSim's "Wait Event" functionality, which they cited as a powerful framework for communication and transfer between model logic and its 3D presentation.
Objectives
  • Optimize the space of the current and new building.
  • Ensure adequate treatment and clinical capacity.
  • Test 10-year patient levels on current and future capacity.
  • Test additional designs and scenarios.
Results
  • Two fewer clinical halls are needed in the new building.
  • Potential savings of tens of thousands in construction costs in addition to additional space.
  • Validated benefits of bipartite doors vis-à-vis the maze system.
  • Future opportunities to test scenarios for improvement such as:

80% of patients treated in the new building.

- All paediatric patients treated in the current building.

- Connections between buildings.