Stereoscopic 3D CTvsstandard 3D CT in the classification of acetabular fractures: an experimental study

Abstract

The accuracy of stereoscopic and standard three-dimensional (3D) CT in the classification of acetabular fractures was compared. A receiver operating characteristic (ROC) analysis was performed by two radiologists and two surgeons blinded to the presence of acetabular fractures in an animal model (a total of 62 porcine hips, 40 with artificial acetabular fractures). Classification of acetabular fractures was adopted from the literature. Interpretation was performed on a workstation using two specific volume rendering algorithms; unshaded and shaded bone. The ROC analysis did not demonstrate any benefit in stereoscopic 3D CT compared with standard 3D CT.

Stereoscopy in diagnostic radiology and procedure planning: Does stereoscopic assessment of volume‐rendered CT angiograms lead to more accurate characterisation of cerebral aneurysms compared with traditional monoscopic viewing?

“…The history of stereoscopy is varied, incorporating rudimentary eye‐crossing techniques, optical devices, head‐mounted displays and various monitor technologies . Stereoscopic techniques were used widely by the Royal Air Force in World War II, owing to their ability to provide greater detail to imagery analysts .…”

“…The history of stereoscopy is varied, incorporating rudimentary eye-crossing techniques, 2,3 optical devices, 4 head-mounted displays 5 and various monitor technologies. [6][7][8][9][10] Stereoscopic techniques were used widely by the Royal Air Force in World War II, owing to their ability to provide greater detail to imagery analysts. 11 The first papers on stereoscopic examination of radiographic data were published in the late 19th and early 20th centuries.…”

Evaluation of the Diagnostic Accuracy of Conventional 2‐Dimensional and 3‐Dimensional Computed Tomography for Assessing Canine Sacral and Pelvic Fractures by Radiologists, Orthopedic Surgeons, and Veterinary Medical Students

“…Radiography is used as the initial imaging modality in the workup of traumatized dogs with suspected sacral or pelvic fractures; however, superimposition of soft tissue and bony structures in the sacral and pelvic area may hinder accurate interpretation. Conventional 2‐dimensional computed tomography (2D‐CT) is commonly used to further classify pelvic fractures for surgical planning or when acetabular fractures are suspected . 2D‐CT allows reformatting of images in various anatomic planes to provide superior evaluation of the extent or exact location of a bony lesion; however, 2D‐CT often creates several hundred 2‐dimensional images, which can be difficult for the evaluator to mentally reconstruct into a 3‐dimensional object.…”

“…2D‐CT allows reformatting of images in various anatomic planes to provide superior evaluation of the extent or exact location of a bony lesion; however, 2D‐CT often creates several hundred 2‐dimensional images, which can be difficult for the evaluator to mentally reconstruct into a 3‐dimensional object. In human trauma patients, volume rendered 3‐dimensional reconstruction of 2D‐CT images has enabled physicians to process 2D‐CT images into 3‐dimensional objects displaying complex relationships between fractured bones that can more easily be appreciated . Three‐dimensional computed tomography (3D‐CT) reconstructions are created by a computer software program that incorporates the conventional CT images from various planes into a representative 3‐dimensional model.…”

“…Three‐dimensional computed tomography (3D‐CT) reconstructions are created by a computer software program that incorporates the conventional CT images from various planes into a representative 3‐dimensional model. Bone and soft tissue attenuation levels, in addition to colors and transparency, can be altered to the evaluators' preference . The 3D‐CT images in people have provided more information than 2D‐CT images during evaluation of pelvic fractures yielding a more reliable diagnosis and more effective therapy and surgical planning …”