Data Management Solution for Large-Volume Computed Tomography in an Existing Picture Archiving and Communication System (PACS)
Multidetector row computed tomography (MDCT) creates massive amounts of data, which can overload a picture archiving and communication system (PACS). To solve this problem, we designed a new data storage and image interpretation system in an existing PACS. Two MDCT image datasets, a thick- and a thin-section dataset, and a single-detector CT thick-section dataset were reconstructed. The thin-section dataset was archived in existing PACS disk space reserved for temporary storage, and the system overwrote the source data to preserve available disk space. The thick-section datasets were archived permanently. Multiplanar reformation (MPR) images were reconstructed from the stored thin-section datasets on the PACS workstation. In regular interpretations by eight radiologists during the same week, the volume of images and the times taken for interpretation of thick-section images with (246 CT examinations) or without (170 CT examinations) thin-section images were recorded, and the diagnostic usefulness of the thin-section images was evaluated. Thin-section datasets and MPR images were used in 79% and 18% of cases, respectively. The radiologists’ assessments of this system were useful, though the volume of images and times taken to archive, retrieve, and interpret thick-section images together with thin-section images were significantly greater than the times taken without thin-section images. The limitations were compensated for by the usefulness of thin-section images. This data storage and image interpretation system improves the storage and availability of the thin-section datasets of MDCT and can prevent overloading problems in an existing PACS for the moment.
Key wordsCT MDCT PACS computer applications
- 7.Hunsaker A, Ingenito E, Topal U, Pugatch R, Reilly J: Preoperative screening for lung volume reduction surgery: usefulness of combining thin-section CT with physiologic assessment. Am J Roentgenol 170:309–314, 1998Google Scholar
- 8.Zeman RK, Berman PM, Silverman PM, Davros WJ, Cooper C, Kladakis AO, Gomes MN: Diagnosis of aortic dissection: value of helical CT with multiplanar reformation and three-dimensional rendering. Am J Roentgenol 164:1375–1380, 1995Google Scholar
- 9.Kohs GJ, Legunn J: CT in your clinical practice. Am J Roentgenol 183:1–12, 2004Google Scholar