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111.
112.
Monica Rogers DVM Robert E. Cartee DVM MS William Miller DVM Ahmed K. Ibrahim MVSc PhD 《Veterinary radiology & ultrasound》1986,27(1):24-29
B-mode ultrasonography using a 7.5 megahertz (MHz ) transducer was performed on 95 equine cadaver eyes submerged in a water bath. Identification and measurement of the anterior to posterior diameters of the intraocular structures and of the axis bulbi was done. The dorsal ventral axis of the eye was also measured. The eyes were then frozen, sectioned in a saggital plane and the same measurements were made using calipers. Two sets of measurements were then compared statistically.
With the exception of the cornea and the dorsal ventral axis measurements of male horses there was no statistically significant difference in the measurements obtained by the two methods.
The use of B-mode ultrasonography at a frequency of 7.5 MHz to examine the architecture of the equine eye is suggested as a valuable clinical tool. Biometry of the intraocular structures at this frequency may be reasonably accurate. 相似文献
With the exception of the cornea and the dorsal ventral axis measurements of male horses there was no statistically significant difference in the measurements obtained by the two methods.
The use of B-mode ultrasonography at a frequency of 7.5 MH
113.
Rhea V. Morgan DVM Rachel D. Ring DVM Daniel A. Ward DVM PhD William H. Adams DVM 《Veterinary radiology & ultrasound》1996,37(3):185-192
Magnetic resonance (MR) images were acquired in five dogs and one cat with ocular and orbital disease. MR images were obtained in the dorsal or oblique dorsal, and oblique sagittal planes. Pathologic changes identified in MR images included inflammatory lesions, cystic structures, and neoplasms. All abnormalities were readily apparent in TI-weighted images. MR findings in affected animals were often similar in signal intensity, location, and growth pattern to those found in people with comparable diseases. Although no MR changes were considered pathognomonic for a given disease, MR imaging provided detailed information on the homogeneity, extent and invasiveness of the lesions. 相似文献
114.
Summary About 13,000 somaclones of 17 cultivars and clones of potato were obtained from in vitro callus cultures and individually
planted in a greenhouse, followed by tuber generations grown in the field. These plants were subjected to the multistage selection
procedure commonly used in potato breeding. Over a period of five years and three field generations the tuber number, size,
shape, eye depth, starch content, starch yield and tuber appearance of these somaclones were assessed and compared with that
of the controls. These characters varied depending on donor genotype and trait. The frequency of variants was assessed and
there were acceptable proportions of desirable abberrants and invariants among the somaclones. Depending on trait the average
gain rate for all donor genotypes ranged between 0.2 and 2.3% for-deviants, between 12.2 and 15.5% for invariants and between
0.1–1.4% for +deviants.
It is concluded that this technique should be used into potato breeding programmes to improve commercially important characteristics
of specific cultivars and breeding clones. 相似文献
115.
Phacoemulsification in a clouded leopard (Neofelis nebulosa) 总被引:1,自引:0,他引:1
Pennie L. Cooley 《Veterinary ophthalmology》2001,4(2):113-117
Phacoemulsification and prophylactic retinopexy were performed on a 3‐month‐old hand‐raised clouded leopard with a unilateral mature cataract. The same procedures were repeated 3 months later when a cataract developed in the fellow eye. Examination procedures, anesthetic protocols, and surgical techniques were similar to those utilized in domestic cats. The patient retains highly functional aphakic vision at the present age of 2.5 years. An inherited basis for the cataracts is proposed. Although the cub was hand raised, the cataracts were unlike nutritional cataracts reported previously in domestic cats and dogs. To the author’s knowledge this is the first report of cataract formation and phacoemulsification in a clouded leopard. 相似文献
116.
Rhea V. Morgan DVM Gregory B. Daniel DVM MS Robert L. Donnell DVM 《Veterinary radiology & ultrasound》1994,35(2):102-108
Magnetic resonance (MR) images of the normal eye and orbit of the dog and cat were acquired. T1-weighted, proton-density, and T2-weighed images were obtained in the oblique dorsal, straight sagittal, and oblique sagittal planes. Signal intensity for the various orbital structures differed among the three resonance techniques. T1-weighted images provided the greatest contrast of the retrobulbar structures. T-1 weighted images also had the highest signal to noise ratio, thereby providing the best anatomic detail. Anatomic components of the globe, retrobulbar structures and ocular adnexa were easily seen in all MR sections. The oblique dorsal and oblique sagittal planes were superior for evaluating the optic nerve in its entirety. 相似文献
117.
The use of porcine small intestinal submucosa in ten cases of feline corneal disease 总被引:3,自引:0,他引:3
Heidi J. Featherstone Jane Sansom Christine L. Heinrich† 《Veterinary ophthalmology》2001,4(2):147-153
Porcine small intestinal submucosa (SIS) was used as a novel graft material in the management of 10 cases of feline corneal disease. Five cases had stromal ulceration associated with trauma, ocular foreign body and/or suspected infection and required a grafting procedure. Five cases had feline sequestra that were managed by a keratectomy prior to placement of SIS as a graft material. Eight eyes healed with minimal corneal scarring with a very good cosmetic and visual result. One eye with continued aqueous leakage in the immediate postoperative period required a conjunctival pedicle graft to reinforce the SIS graft site. One eye required enucleation 48 h following grafting due to progressive keratomalacia but the SIS material remained intact. 相似文献
118.
119.
以红灯为试材,探讨了甜樱桃覆草栽培对其开花结实情况的影响。研究发现覆草栽培可有效地提高甜樱桃结果枝叶片数,使叶片营养水平显著提高,平均花芽数量提高1-2个;同时可使红灯樱桃坐果率提高25.04-28.01个百分点。平均单果重增加18%;果汁的可溶性固形物含量增加1.17个百分点,花期滞后3-5d。 相似文献
120.
The objective of this retrospective study was to describe signalment, clinical presentation, surgical treatment, outcome, histopathologic, and immunohistochemical characteristics of periocular peripheral nerve sheath tumor in a series of cats. Six cats with a histologic diagnosis of peripheral nerve sheath tumor of the eyelid and/or conjunctiva were identified from 3997 feline ocular histopathologic submissions to the Comparative Ocular Pathology Laboratory of Wisconsin between 1976 and 2002. Medical records were reviewed and data were collected for signalment, eye affected, location, duration, and history of tumor recurrence. Ancillary diagnostic tests, surgical approach, and histopathology were also described. Special stains and immunohistochemistry panels were performed on the tissue. Follow-up information was obtained through telecommunications with the owner and local veterinarian. The mean age of the cats was 8 years (range: 5-15 years). There was an equal distribution of males and females. Breeds represented were two Domestic Long-haired (DLH) cats, three Domestic Short-haired (DSH) cats, and one Manx. The right eye was affected in four cats and the left eye in two cats. The superior eyelid was affected in four cats, the superior conjunctiva in two cats, and the inferior eyelid in one cat. All of the cats that underwent surgical excision, cryoablation, or laser ablation had an average of three recurrences of the tumor. Four of six cats undergoing wide excision with enucleation, exenteration or rhomboid flap had no recurrence of the tumor. Histomorphologically, all of the tumors were of spindle cell type with five of six tumors showing histologic features of Antoni type B tissue. All six tumors stained positive for vimentin. Five of six tumors stained positive for S-100 and laminin. All six tumors were negative for smooth muscle actin. Definitive histologic diagnoses of spindle cell tumors can be difficult. The presence of Antoni A and B histologic patterns as well as immunohistochemical reactivity for vimentin, S-100, and laminin suggest a diagnosis of peripheral nerve sheath tumor. Our findings suggest that local aggressive recurrence is common and that wide surgical excision combined with enucleation or exenteration may be indicated. 相似文献