Table 2.

Interpretations of the Different Parameters Utilized in the Three RadMonitor Treemap Representations

	Radiologist Treemap	Staff Treemap	Orders Treemap
Individual node rectangle
Size	The size of an individual radiologist’s node rectangle correlates to the number of exams that he or she has dictated. The larger the rectangle, the more exams that the radiologist has dictated.	The size of an individual staff member’s node rectangle correlates to the number of exams that he or she has transcribed. The larger the rectangle, the more exams that the staff member has transcribed.	The size of an order node rectangle correlates with the amount of time that the order has been in its current status. The larger the rectangle, the longer that the order has been in its current status.
Color	The color of an individual radiologist’s node rectangle correlates with his or her average dictation time compared to the modality average. By default, green represents times faster than average, and red represents times slower than average.	The color of an individual staff member’s node rectangle correlates with his or her average transcription time compared to the modality average. By default, green represents times faster than average, and red represents times slower than average.	The color of an order node rectangle correlates with the status of the order. RadMonitor supports the following default conventions: entered, black; ordered, red; started, orange; completed, yellow; dictated, green; transcribed, blue; final, purple; and cancelled, gray.
Color gradient	The color gradient of an individual radiologist’s node rectangle correlates with the degree in which his or her average dictation time differs from the modality average. A bright green color represents times much faster than average, and a dull green color represents times slightly faster than average.	The color of an individual staff member’s node rectangle correlates with the degree in which his or her average transcription time differs from the modality average. A bright green color represents times much faster than average, and a dull green color represents times slightly faster than average.	The color gradient of an order node rectangle is unused at this time.
Modality node rectangle
Size	The modality node rectangle size is a summation of the individual node rectangle sizes. The larger the node rectangle, the greater the number of exams that have been dictated within the modality.	The modality node rectangle size is a summation of the individual node rectangle sizes. The larger the node rectangle, the greater the number of exams that have been transcribed within the modality.	The modality node rectangle size is a summation of the individual node rectangle sizes. The larger the node rectangle, the longer the individual orders have been in their respective status within the modality.
Color	The modality node rectangle color is a patchwork hue of the individual node rectangle colors. Appearances more green in color represent individual dictation times that are generally faster than the modality average.	The modality node rectangle color is a patchwork hue of the individual node rectangle colors. Appearances more green in color represent individual transcription times that are generally faster than the modality average.	The modality node rectangle color is a patchwork hue of the individual node rectangle colors. Appearances tending toward a single color represent a majority of orders with that respective status.
Color gradient	The modality node rectangle color gradient is a patchwork hue of the individual node rectangle color gradients. Appearances more bright green in color represent individual dictation times that are generally much faster than the modality average.	The modality node rectangle color gradient is a patchwork hue of the individual node rectangle color gradients. Appearances more bright green in color represent individual transcription times that are generally much faster than the modality average.	The modality node rectangle color gradient is unused at this time.