Imaging For Surgical Planning Research Articles

Segmentation of lung lobes in clinical CT images

Objective Recent studies have shown that three-dimensional (3D) visualization of lung cavities has distinct advantages over multiplanar computed tomographic (CT) images for surgical planning. A crucial step for achieving this 3D visualization is the automatic segmentation of lung lobes. This paper presents a watershed algorithm for segmenting lung lobes in clinical CT images so that the 3D visualization of lung lobes would be practical in clinical settings.

Intraoperative magnetic resonance imaging and meningioma surgery

To determine if intraoperative magnetic resonance imaging improves surgical resection and postoperative outcome of intracranial meningioma. Prospective, non-randomized, cohort study. Intraoperative Magnetic Resonance Imaging (iMRI) was used to evaluate patients with meningioma undergoing surgery. Images were obtained after induction of anaesthesia and at various stages of tumour resection. Extent of surgical resection was graded using Simpson grading system for meningioma. The images were reviewed together with histopathology and early outcome. Primary outcome measure was determined by finding unexpected tumur in interdissection images. Secondary outcome measures were determined by postoperative complications including infections and mortalities. There were 39 procedures in 38 patients from January 1998 to December 2002. Surgical-planning images helped to optimize craniotomy placement. Interdissection images revealed unexpected residual tumour in only 1 patient. Complete resection (Simpson grades 1-3) was achieved in 33 procedures. The average follow up period was 16.4 months. Tumour recurrence has been observed in three patients. Two of these patients had anaplastic meningioma. There was no mortality in the 30-day postoperative period. Intraoperative MRI was beneficial in siting the craniotomy in addition to providing anatomical relationships between the tumour and adjacent structures in lesions located at the skull base though the full benefit of these is yet to be determined. The low morbidity and zero mortality recorded in the study may be related to all these factors.

Role of three‐dimensional imaging in surgical planning for kidney surgery

Role of three‐dimensional imaging in surgical planning for kidney surgery

Application and validation of three-dimensional data sets from a phase contrast MR angiography for preoperative computer simulation of brain tumors.

We applied a three-dimensional (3D) phase contrast magnetic resonance angiography as the source for generating integrated 3D images for surgical planning of brain tumors. In the 3D model, we defined the Cingulomarginal sulcus and subsequently the central sulcus in the interhemispheric plane. This method solved the misregistration problem caused by the combination of multi-sequence data sets and can be feasible for surgical planning.

Use of Three-Dimensional Imaging for Surgical Planning and Research

Use of Three-Dimensional Imaging for Surgical Planning and Research