Revista nº 814

Trebollé JF, et al. | 3D morphometric analysis of the cadaveric colon 263 Actual Med. 2021; 106(814): 260- 270 2, it decreased in series 02, 03, 04, 05, 06 and 07; in cadaver 3, it did not change in series 06, decreased in series 03 and increased in the rest of the series. The correlation was strong and negative only for HF-IMA- AS and IMA-HF (r = -0.66) (Table 3). The HF-PUBIS-SA angle did not change in cadaver 1; in cadaver 2, it decreased in series 06, 07 and 08; in cadaver 3, it increased in series 02 and decreased in the last three series. The PUBIS-HF distance did not change in cadavers 1 and 2; in cadaver 3, it increased in series 09 and decreased in series 10. The PUBIS-SA distance did not change in cadaver 1; in cadavers 2 and 3, it increased in series 08, 09 and 10. The correlation was only strong between HF-PUBIS-SA and PUBIS-SA, and the relationship was negative (r = -0.71) (Table 4). Computer-aided anatomical analysis with the DICOM protocol is the most widely used medical imaging standard for the study and transfer of images. (18,19) This technology allowed us to examine the positions of different points of the abdominal viscera induced by different decubitus positions. (12-14) Our results are both descriptive and quantifiable. To perform interventions in laparoscopic surgery, the patient is positioned in decubitus to make the viscera targeted for the surgery more accessible. (15) However, the use of these decubitus positions is intuitive and is based on the positioning of organs. (13,15) Our results were not homogeneous, so the mobility of the different points studied could be related to more than one factor, such as fixations to the peritoneum and the proximity of other viscera. Figure 1. Three-dimensional reconstruction and chromatic change of the surface of the colon without pneumoperitoneum or any decubitus posture (Series 01). a: Cadaver 1. b: Cadaver 2. c: Cadaver 3. Figure 2. Location of the variables proposed in the study as reference points and as measures of length and angle. a: Proposed reference points. b: Measurements of the proposed lengths: SPINE-SPINE length, PUBIS-SMA length. PUBIS-IMA length. SMA-IMA length. PUBIS-HF length. PUBIS-SA length. SMA-HF length. SMA-SA length. IMA-HF length. IMA-SA length. c: Proposed angle measurements: HF-PUBIS-SA angle. HF- SMA-SA angle. HF-IMA-SA angle.