Some possible applications of computerized tomography in pathology

Area of Science:

• Medical Imaging
• Pathology
• Radiology

Background:

• Traditional tissue processing for pathology involves fixation, sectioning, and staining, which can introduce artifacts.
• Current imaging techniques for pathology have limitations in resolution and invasiveness.

Purpose of the Study:

• To explore the adaptability of computerized tomography for both microscopic and gross pathology.
• To propose methods for enhancing the resolution and reducing invasiveness of tomographic pathology imaging.

Main Methods:

• Low voltage (3-8 keV) X-ray histologic tomography of small tissue samples (1-3 mm cylinders).
• Modification of existing whole-body scanners for gross pathology with finer collimation, longer exposure times, and higher X-ray fluxes.
• Development of a rotate-only microgantry design for histologic tomography.

Main Results:

• Histologic tomography can provide atomic-number-dependent absorption coefficients, obviating fixation, sectioning, and staining artifacts.
• Modified whole-body scanners could achieve higher resolution tomograms for gross pathology compared to in-vivo imaging.
• Needle aspiration of suspected pathology could be integrated, avoiding gross dissection.

Conclusions:

• Computerized tomography offers a promising, artifact-free approach for microscopic and gross pathology.
• Enhanced tomographic techniques can significantly improve resolution and reduce the need for invasive dissection in pathological examination.