Soler Laguía, Marta

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Soler Laguía, Marta

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Soler Laguía, Marta

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Universidad de Murcia. Departamento de Medicina y Cirugía Animal

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Open Access
Creation of three-dimensional anatomical vascular and biliary models for the study of the feline liver (Felis silvestris catus L.): a comparative CT, volume rendering (Vr), cast and 3D printing study
(MDPI, 2023-05-09) Rojo Ríos, Daniel; Ramírez Zarzosa, Gregorio José; Soler Laguía, Marta; Kilroy, David; Martínez Gomariz, Francisco; Sánchez Collado, Cayetano; Gil Cano, Francisco; García García, María I.; Raduán Jáber, José; Arencibia Espinosa, Alberto; Anatomía y Anatomía Patológica Comparada; Facultad de Veterinaria
In this study, six adult feline cadavers were examined using CTA, 3D printing, and casts injected with epoxy. The aorta, the portal vein, and the gallbladder of 3 feline cadavers were separately injected with a 50% mixture of colored vulcanized latex and hydrated barium sulfate as contrast medium to analyze by CT the arterial, venous and biliary systems. The other three cadavers were injected with a mixture of epoxy resin in the aorta, gallbladder and hepatic veins, separately. After the corrosion and washing process, hepatic vascular and biliary casts were obtained. The images obtained by CT showed the vascular and biliary system using a soft tissue window. For the identification of vascular and biliary structures, the 3D prints together with the 3D reconstructions were analyzed, and the results were compared with the casts obtained with epoxy resin. Each of the arterial, venous and biliary branches associated with each of the liver lobes were identified with the help of the printings. In conclusion, the creation of 3D prototypes of nonpathological feline hepatic parenchyma can be used in the veterinary clinic as a basis for the detection of pathological problems in addition to obtaining future pathological hepatic 3D models.
Open Access
A study of the head during prenatal and perinatal development of two fetuses and one newborn striped dolphin (Stenella coeruleoalba, Meyen 1833) using dissections, sectional anatomy, CT, and MRI: anatomical and functional implications in cetaceans and terrestrial mammals
(MDPI, 2019-12-13) Ríos y Loshuertos, Álvaro García de los; Arencibia Espinosa, Alberto; Soler Laguía, Marta; Gil Cano, Francisco; Martínez Gomariz, Francisco; López Fernández, Alfredo; Ramírez Zarzosa, Gregorio José; Anatomía y Anatomía Patológica Comparada; Facultad de Veterinaria
Our objective was to analyze the main anatomical structures of the dolphin head during its developmental stages. Most dolphin studies use only one fetal specimen due to the difficulty in obtaining these materials. Magnetic resonance imaging (MRI) and computed tomography (CT) of two fetuses (younger and older) and a perinatal specimen cadaver of striped dolphins were scanned. Only the older fetus was frozen and then was transversely cross-sectioned. In addition, gross dissections of the head were made on a perinatal and an adult specimen. In the oral cavity, only the mandible and maxilla teeth have started to erupt, while the most rostral teeth have not yet erupted. No salivary glands and masseter muscle were observed. The melon was well identified in CT/MRI images at early stages of development. CT and MRI images allowed observation of the maxillary sinus. The orbit and eyeball were analyzed and the absence of infraorbital rim together with the temporal process of the zygomatic bone holding periorbit were described. An enlarged auditory tube was identified using anatomical sections, CT, and MRI. We also compare the dolphin head anatomy with some mammals, trying to underline the anatomical and physiological changes and explain them from an ontogenic point of view.
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Colour and pulsed Doppler Ultrasonographic Study of the canine testis
(Wiley , 2012-07-10) Carrillo Sánchez, J. D.; Soler Laguía, Marta; Lucas Arjona, Xiomara; Agut Giménez, Amalia; Medicina y Cirugía Animal; Facultades de la UMU::Facultad de Veterinaria
Este estudio se llevó a cabo para caracterizar el flujo sanguíneo normal del testículo canino y medir la velocidad sistólica máxima (PSV), la velocidad telediastólica (EDV), el índice de resistencia (RI) y el índice de pulsatilidad (PI) de las arterias testiculares semanalmente durante un período de 6 meses en cinco perros Beagle sanos, así como para evaluar si se producían cambios a lo largo de este tiempo. Los exámenes ecográficos se realizaron con un transductor lineal de 11 MHz. Los vasos testiculares se subdividieron en tres categorías: arterias supratesticulares, arteria marginal y vasos intratesticulares. En las arterias supratesticulares se registraron dos mediciones, en la porción craneal y en la porción en asa (looping). No se observaron diferencias significativas en ninguno de los parámetros estudiados durante los 6 meses que duró el estudio. La porción craneal de la arteria supratesticular mostró un patrón de flujo característico de vaso de alta resistencia, mientras que en la porción en asa de la arteria supratesticular, así como en las arterias marginales e intratesticulares, el flujo presentó un patrón de baja resistencia. Los valores de PSV, RI y PI fueron más elevados en la porción craneal de la arteria supratesticular, seguidos por la porción en asa de la arteria supratesticular, la arteria marginal y los vasos intratesticulares. Las mediciones de EDV fueron mayores en la porción en asa de la arteria supratesticular.
Open Access
A neuroanatomical study of the feline brain using MRI and mulligan staining: functional and pathological considerations
(2021) Diaz Martínez, E.; Ayala Florenciano, María Dolores; Arencibia Espinosa, A.; Soler Laguía, Marta; Kilroy, D.; Martínez Gomariz, Francisco; Ramírez Zarzosa, Gregorio José; Anatomía y Anatomía Patológica Comparada; Facultad de Veterinaria
Background: Despite multiple studies describing accurate diagnoses using advanced neuroimaging techniques, low and mid-field magnetic resonance imaging (MRI) are still the most frequent scanners in veterinary clinics. To date, these studies in cats do not show a clear distinction of nerve centres in MRI data. Aims: The objective of this study is to determine the efficacy of Mulligan histological staining as a tool in facilitating the location and identification of the main structures of the feline brain in MRI. This study aims to facilitate the interpretation of MRI obtained with these types of scanners. Methods: A total of 10 feline brains were used. One specimen was used for MRI (T2 sequence using a 1.5T scanner). The other 9 brains were sectioned and stained with the three Mulligan staining techniques (Mulligan, Le Masurier and Robert). Results: The uptake of stain by the grey matter in these sections allowed the determination of the location and the limits of these nervous structures within the brain. The histological location of these structures was correlated with the MRI scans, leading to the successful identification of many small, indistinct nuclei. Conclusion: Mulligan staining is proposed as a tool that facilitates the location of nerve structures in comparison with data from the most frequently-used MRI scanners in veterinary clinics.
Open Access
Short-Term Effects of Deliberate Subparaneural or Subepineural Injections With Saline Solution or Bupivacaine 0.75% in the Sciatic Nerve of Rabbits
(Frontiers Media, 2020-05-12) Laredo Álvarez, Francisco Ginés; Belda Mellado, Eliseo; Soler Laguía, Marta; Gil Cano, Francisco; Murciano Pérez, José; Sánchez Campillo, Joaquín; Agut Giménez, Amalia; Anatomía y Anatomía Patológica Comparada
Background: Ultrasound (US)-guided techniques for peripheral nerve blockade have revealed that intraneural injections are relatively frequent and not necessarily associated with neurological deficits. Objectives: To evaluate the short-term effects of deliberate injections performed under direct vision in two different sites of the sciatic nerve (ScN). Material and Methods: Seventy-two New Zealand white rabbits randomly assigned to one of four experimental groups (n = 18) were employed. All procedures were conducted at a proximal femoral level where the ScN incorporates the common peroneal nerve and the tibial nerve (TN). Fixed volumes of 0.5ml of saline solution (ES group) or bupivacaine 0.75% (EB group) were administered extrafascicularly inside the paraneurium of the ScN or intrafascicularly (IS and IB groups) under the epineurium of the TN. Cross-sectional area (CSA) and relative echogenicity (RE) of the entire ScN were determined by US before injections, after injections, and at 3 and 7 days. ScN samples were obtained for structural and ultrastructural histopathological studies. Proprioceptive, sensorial, and motor function were clinically evaluated on a daily basis. Results: The CSA of the ScN increased significantly immediately after injections when compared with pre-injection values in all groups (p < 0.05). The RE of the ScN decreased in relation to pre-injection values in all groups (p < 0.05). The CSA and RE of the ScN returned to normal values 7 days after injections in almost all groups. Injected nerves showed histological signs of mild perineural inflammation. Histopathological scores were not significantly different between groups (p > 0.05). The architecture of the ScN was preserved in all rabbits at 3 days and in 31/32 rabbits at 7 days. A focal area of damaged nerve fibers with degeneration of the axons and myelin sheath affecting the TN was observed in one rabbit of the IB group. Nerve function was not clinically impaired in any case. Conclusion: Despite the lack of severe nerve disruption observed in most rabbits, the evidence of a focal area of damaged nerve fibers in one rabbit injected intrafascicularly with bupivacaine confirms that intrafascicular injections should be avoided as they may increase the risk of nerve damage.
Open Access
The bony nasal cavity and paranasal sinuses of big felids and domestic cat: a study using anatomical techniques, computed tomographic images reconstructed in maximum-intensity projection, volume rendering and 3D printing models
(MDPI, 2024-09-07) Díaz Martínez, Elena; Arencibia Espinosa, Alberto; Soler Laguía, Marta; Ayala Florenciano, María Dolores; Kilroy, David; García García, María I.; Martínez Gomariz, Francisco; Sánchez Collado, Cayetano; Gil Cano, Francisco; Raduán Jaber, José; Ramírez Zarzosa, Gregorio José; Anatomía y Anatomía Patológica Comparada; Facultad de Veterinaria
This study aims to develop three-dimensional printing models of the bony nasal cavity and paranasal sinuses of big and domestic cats using reconstructed computed tomographic images. This work included an exhaustive study of the osseous nasal anatomy of the domestic cat carried out through dissections, bone trepanations and sectional anatomy. With the use of OsiriX viewer, the DICOM images were postprocessed to obtaining maximum-intensity projection and volume-rendering reconstructions, which allowed for the visualization of the nasal cavity structures and the paranasal sinuses, providing an improvement in the future anatomical studies and diagnosis of pathologies. DICOM images were also processed with AMIRA software to obtain three-dimensional images using semiautomatic segmentation application. These images were then exported using 3D Slicer software for three-dimensional printing. Molds were printed with the Stratasys 3D printer. In human medicine, three-dimensional printing is already of great importance in the clinical field; however, it has not yet been implemented in veterinary medicine and is a technique that will, in the future, in addition to facilitating the anatomical study and diagnosis of diseases, allow for the development of implants that will improve the treatment of pathologies and the survival of big felids.
Open Access
Comparative anatomy of the nasal cavity in the common dolphin Delphinus delphis L., striped dolphin Stenella coeruleoalba M. and pilot whale Globicephala melas T.: a developmental study
(MDPI, 2021-02-08) Ríos y Loshuertos, Alvaro García de los; Soler Laguía, Marta; Arencibia Espinosa, Alberto; López Fernández, Alfredo; Covelo Figueiredo, Pablo; Martínez Gomariz, Francisco; Sánchez Collado, Cayetano; García Carrillo, Nuria; Ramírez Zarzosa, Gregorio José; Anatomía y Anatomía Patológica Comparada; Facultad de Veterinaria
Our goal was to analyze the main anatomical structures of the dolphin external nose and nasal cavity from fetal developmental stages to adult. Endoscopy was used to study the common development of the external nose and the melon, and nasal mucosa. Magnetic resonance imaging (MRI) and anatomical sections were correlated with anatomical sections. Computed tomography (CT) was used to generate 3D reconstructions of the nasal bones and nasal cavities to study its development. Dissections, histological and pathological studies were carried out on the nasal mucosa to understand its function. These results were compared with the horse. Endoscopy showed an external nose with two lips and the upper lip is divided by a groove due to the nasal septum and an obstruction of right nasal cavity was diagnosed in a newborn. Two diverticula (air sacs) were found in the nasal vestibule and an incisive recess (premaxillary sac) in the nasal cavity. These findings were corroborated by 3D reconstructions of the nasal cavities, MRI, anatomical sections and dissections. The presphenoid and ethmoid bones were fused at early stages of fetal development. The ethmoid is the last bone to ossify in the nasal cavity.
Open Access
An anatomical study using computed tomography, magnetic resonance imaging, and rhinoscopy of the nasal cavity of domestic cat (Felis silvestris catus L.) and big cats: lion (Panthera leo leo L.), leopard (Panthera pardus kotiya L.), and cheetah (Acinonyx jubatus jubatus S.)
(MDPI, 2024-04-13) Díaz Martínez, Elena; Arencibia Espinosa, Alberto; Kilroy, David; Soler Laguía, Marta; Kilroy, David; Martínez Gomariz, Francisco; Casas García, Diego Luis; Sánchez Collado, Cayetano; Gil Cano, Francisco; Raduán Jaber, José; Ramírez Zarzosa, Gregorio José; Anatomía Humana y Psicobiología; Facultad de Veterinaria
The objective of this work was to study the normal anatomy of the nasal cavity of the three species of big cats (leopard, lion, and cheetah) compared to the domestic cat through the use of computed tomography, magnetic resonance imaging, and rhinoscopy. Computed tomography allowed us to clearly visualize the entire bony and cartilaginous framework that supports the nasal cavity. Magnetic resonance imaging permitted better visualization of the soft tissues of this cavity. On the other hand, rhinoscopy enabled the direct visualization of the mucosa of the vestibule and nasal cavity, which is very useful in the diagnosis of masses or foreign bodies. Furthermore, with this technique, it has been possible to observe several small orifices from the nasolacrimal duct, the pharyngeal auditory tube, and the lateral nasal gland. Computed tomography, magnetic resonance imaging, and rhinoscopy are useful tools in analysis of the anatomical characteristics of the nasal cavity in these species.