ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1986.tb00018.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1986.tb00019.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

Iatrogenic lesions to the accessory ligament (carpal check or inferior check) and to the superficial digital flexor tendon of five ponies were monitored utilizing diagnostic ultrasound for a period of 6–24 weeks post‐injury. The opposite limb was used as a non‐surgical control. Sonographic differences from control limbs were recorded and correlated with the gross and microscopic post‐mortem lesions. Early post‐surgical sonographic findings included thickening with discrete hypoechoic areas within the injured tissues which corresponded to regions of hemorrhage, edema, and tissue disruption at necropsy. The linear hyperechoic pattern seen in normal tendons was disorganized in the injured portion of the tendons or ligaments. Disruption of the margins of the incised tissues was observed. The initial hypoechoic areas disappeared or decreased in size and became more echoic as healing progressed. The increasing echoic pattern in these areas corresponded to regions of fibrous tissues invasion and collagen deposition. As post‐injury time increased, the size of the tendon or ligament decreased, the margins became more distinct, and the internal structure again became more organized (linear). It was concluded that diagnostic ultrasound can be useful in evaluating injury and healing of the accessory ligament and the superficial digital flexor tendo

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1986.tb00020.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

Single high‐dose radiotherapy was evaluated as a treatment for seven adenocarcinomas of the distal half of the rectum and anal canal in six dogs. A single dose of radiation ranging from 15–25 Gy was given to the tumor by the use of a well‐collimated, low‐energy orthovoltage x‐ray beam. Six tumors had complete response to treatment. Minimal acute radiation reaction was observed in all dogs. The tumor control and survival rates at 1 year were estimated to be 46% and 67%, respectively. Median and mean tumor‐free times were 6.0 and 9.7 months, respectively; and median and mean survival times were 7.0 and 11.3 months, respectively. No long‐term side effects were noted. Proper patient selection was critical because of the physical limitations of the procedure. Tumors should be less than 3 cm in diameter, confined to the rectal wall, and be located in the distal half of the rectum and anal canal. This preliminary study documented the fasibility, efficacy, and lack of toxicity of single high‐dose radiotherapy for selected re

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1986.tb00021.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

Seventeen horses with a total of 18 ocular or periorbital squamous cell carcinomas were irradiated with Strontium‐90 surface therapy, or Radon‐222, Iodine‐125, or Iridium‐192 interstitial implants. Tumors were surgically cytoreduced prior to irradiation in all but two horses. Follow‐up data was obtained for 2 years in each horse. Two‐year‐non‐recurrence rates (no grossly visible evidence of tumor) were 87.5% for90Sr beta therapy, and 60% (70% when corrected for non‐tumor‐related deaths) for interstitial implant therapy. Data regarding frequency of occurrence, location of lesions, age of onset, and non‐recurrence rates were similar to previous literature reports utilizing variable or shorter follow‐up periods. The effects of cytoreductive surgery of the

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1986.tb00022.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1986.tb00023.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

The sonographic appearance of intraabdominal abscess, excluding prostatic abscess, is presented. The most common sonographic pattern identified for intraabdominal abscess is an irregularly defined, hypoechoic mass with minimal to no through transmission. Definitive diagnosis of intraabdominal abscess using only sonography is not possible, as variations of this common sonographic pattern are imaged. Sonography is best utilized to scan an animal when there is a high suspicion of intraabdominal abscess with no overt physical or radiographic evidence, and to better characterize intraabdominal masses. Sonography can be used to assist in percutaneous aspiration, catheterization, and intraoperative localization of abscessation.

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1986.tb00024.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

The scintigraphic characteristics of lymph nodes draining the ventral body wall were analyzed in 12 dogs as to their pattern of appearance and image contrast. Each dog was scanned using99mTc‐antimony sulfide colloid and99mTc‐dextran, and the imaging characteristics of these agents were compared. A large degree of variability exists in the number and pattern of lymph node appearance with either agent. No significant difference in average numbers of lymph nodes per dog was shown between agents. However,99mTc‐antimony sulfide colloid provided a significantly (p<.05) better target‐to‐background ratio, which determines the contrast with which lymph nodes stand out from background activity. From these findings, it is suggested that too great a variability in lymph node appearance exists using this procedure to allow a high degree of confidence in the diagnosis of metastasis to lymph nodes of the ventral body wall. However, for other purposes,99mTc‐antimony sulfide colloid is the lymphoscintigraphic agen

ISSN:0196-3627    

DOI:10.1111/j.1740-8261.1986.tb00025.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY