印度-太平洋江豚腹盆腔器官横断面计算机断层扫描图。

IF 2 3区 医学 Q2 ANATOMY & MORPHOLOGY Annals of Anatomy-Anatomischer Anzeiger Pub Date : 2024-08-31 DOI:10.1016/j.aanat.2024.152317
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引用次数: 0

摘要

背景:计算机断层扫描(CT)是一种无创诊断成像模式,可用于现场研究活体或死亡动物的解剖和形态。对于鲸目动物,现有的 CT 解剖研究大多集中在头部和胸部区域。本研究利用印度-太平洋江豚(Neophocaena phocaenoides)的死后 CT(PMCT)扫描,首次描述了鲸类动物腹盆腔器官的横截面成像解剖:方法:研究人员回顾了在香港水域搁浅的江豚的 PMCT 扫描图像,并选取了其中一雄一雌两只新近死亡的江豚进行说明。此外,还对雌性江豚进行了对比增强 PMCT 扫描,作为鲸类 PMCT 血管造影研究(PMCTA)的试验。在腹部选定的椎骨水平共采集了 18 幅轴向 PMCT 图像,并辅以一系列相应的标注解剖图:结果:通过应用不同的图像渲染技术,江豚腹部的大部分骨和软组织结构都成功地在 PMCT 上得到了描述和标注,包括骨盆区域的雌雄生殖器官。在 PMCT 中应用造影剂会造成人为的放射密度差异,从而提高观察和区分软器官和血管的能力。讨论了 CT 与其他成像模式相比的优点和局限性,以及 PMCT 在搁浅调查中的未来发展方向:本研究的结果大大提高了 CT 在鲸类动物中的应用,有助于研究人员和兽医在临床或尸体解剖中对鲸类动物腹盆腔 CT 进行形态和病理评估。
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Illustrated cross-sectional computed tomography of the cetacean abdomino-pelvic organs

Background

Computed tomography (CT) is a non-invasive diagnostic imaging modality which can be used to study the anatomy and morphology of live or deceased animals in-situ. In cetaceans, existing CT anatomy studies mostly focused on the head and thoracic regions. Using postmortem CT (PMCT) scans of Indo-Pacific finless porpoises (Neophocaena phocaenoides), this study describes the cross-sectional imaging anatomy of the cetacean abdomino-pelvic organs for the first time.

Methods

PMCT scans of finless porpoises stranded in Hong Kong waters were reviewed, of which two freshly dead cases, one male and one female, were selected for illustration. In addition, a contrast-enhanced PMCT scan was performed on the female subject as a trial for a PMCT-angiography study (PMCTA) in cetaceans. A total of 18 axial PMCT images were acquired at selected vertebral levels in the abdomen and supplemented with a series of corresponding labeled anatomical diagrams.

Results

By applying different image rendering techniques, most osseous and soft tissue structures in the finless porpoise abdomen were successfully depicted and annotated on PMCT, including the male and female reproductive organs in the pelvic region. The application of contrast medium in PMCT created artificial radiodensity differences which improved the ability to visualize and differentiate soft organs and vasculature. The merits and limitations of CT compared to other imaging modalities, as well as the future directions of PMCT in stranding investigation, were discussed.

Conclusions

The findings from this study significantly enhance the applications of CT in cetaceans by assisting researchers and veterinarians in the interpretation of cetacean abdomino-pelvic CT for morphological and pathological assessment during clinical or postmortem examination.

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来源期刊
Annals of Anatomy-Anatomischer Anzeiger
Annals of Anatomy-Anatomischer Anzeiger 医学-解剖学与形态学
CiteScore
4.40
自引率
22.70%
发文量
137
审稿时长
33 days
期刊介绍: Annals of Anatomy publish peer reviewed original articles as well as brief review articles. The journal is open to original papers covering a link between anatomy and areas such as •molecular biology, •cell biology •reproductive biology •immunobiology •developmental biology, neurobiology •embryology as well as •neuroanatomy •neuroimmunology •clinical anatomy •comparative anatomy •modern imaging techniques •evolution, and especially also •aging
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