• 제목/요약/키워드: Ultrasonography Imaging

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Presurgical assessment of splenic tumors in dogs: a retrospective study of 57 cases (2012-2017)

  • Lee, Mokhyeon;Park, Jiyoung;Choi, Hojung;Lee, Haebeom;Jeong, Seong Mok
    • Journal of Veterinary Science
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    • v.19 no.6
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    • pp.827-834
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    • 2018
  • The purpose of this study was to evaluate the clinical and imaging characteristics of canine splenic tumors and to establish guidelines for the presurgical assessment of splenic tumors in dogs. Fifty-seven dogs that underwent total splenectomy for the treatment of splenic tumors were evaluated by examining medical records, hematologic results, diagnostic imaging results, and histopathologic results. The maximum lesion size from ultrasonography was significantly different between malignant and benign tumors (p = 0.002). There was a correlation between tumor margination and type of splenic tumors (p = 0.045). Precontrast lesion attenuation on computed tomography was significantly different between splenic malignant and benign tumors (p = 0.001). The mean ${\pm}$ SD precontrast lesion attenuation of malignant tumors was $40.3{\pm}5.9$ Hounsfield units (HU), and for benign tumors, it was $52.8{\pm}6.8HU$. In conclusion, some variables of the imaging examination could be used to distinguish the type of splenic tumor. Based on the study results, using a diagnostic flowchart would be effective in increasing the survival rate of patients with splenic malignant tumors. In addition, fine needle aspiration or magnetic resonance imaging prior to surgical exploration and histopathologic examination may be useful in achieving a more accurate diagnosis.

Diagnostic imaging and treatment of hepatic abscess in a Dachshund (개에서 발생한 간 농양의 진단 영상과 치료 증례)

  • Jung, Joohyun;Chae, Woongjoo;Chang, Jinhwa;Oh, Sunkyoung;Yoon, Junghee;Choi, Mincheol
    • Korean Journal of Veterinary Research
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    • v.48 no.1
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    • pp.119-124
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    • 2008
  • A castrated male, 4-year old, Dachshund weighing 5.3 kg with an acute history of anorexia, vomiting, severe depression, and hypothermia for 1 day was referred. Severe leukopenia, mild increased hepatic enzymes, and mild imbalanced electrolyte were found on laboratory tests. There are no remarkable findings on abdominal radiographs. Ultrasonography showed multifocal heterogeneous and hypoechoic round regions in the liver. Ultrasound guided fine needle aspiration and drainage were performed and hepatic abscess was diagnosed. The patient was recovered normally without any complications through aggressive medical treatments from the result of culture and sensitivity test.

Diagnostic Imaging of Iatrogenic Ureterovaginal Fistula Secondary to Ovariohyterectomy in a Cat (고양이에서 중성화 수술 후 발생한 의인성 요관질루의 영상진단 증례)

  • Jung, Joo-Hyun;Chang, Jin-Hwa;Yoon, Jung-Hee;Choi, Min-Cheol
    • Journal of Veterinary Clinics
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    • v.23 no.4
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    • pp.480-483
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    • 2006
  • A spayed female, 1-year-old, Himalayan, weighing 1.89 kg, was referred. The clinical signs included anorexia, depression, vomiting, urinary incontinence and vaginal discharge for 7 days after elective ovariohysterectomy. In laboratory examination, there was moderate azotemia. Abdominal radiographic findings included heterogeneous serosal detail loss and right renomegaly. Abdominal ultrasonography showed hyperechoic ascites, bilateral polycystic kidneys, right hydronephrosis, and right hydroureter. Excretory urography demonstrated an ureterovaginal fistula. Exploratory laparotomy confirmed this diagnosis and explained that the right ureter had been included in a ligature around the cranial vagina.

Keratocystic odontogenic tumor: case report with CT and ultrasonography findings

  • Sumer, A. Pinar;Sumer, Mahmut;Celenk, Peruze;Danaci, Murat;Gunhan, Omer
    • Imaging Science in Dentistry
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    • v.42 no.1
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    • pp.61-64
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    • 2012
  • Keratocystic odontogenic tumor (KCOT) is a benign odontogenic tumor with a potentially aggressive and infiltrative behavior. KCOT is most commonly occurred in mandible and demonstrate a unilocular, round, oval, scalloped radiolucent area, while large lesions may appear multilocular. An important characteristic of KCOT is its propensity to grow in an antero-posterior direction within medullary cavity of bone causing minimal expansion. Definitive diagnosis relies on histological examination. In this report, a KCOT that had an expansion both buccal and lingual cortical bone is described including its features in computed tomography and ultrasonographic exams. The lesion was removed surgically via an intraoral approach under local anesthesia and histologically reported as a KCOT.

Maximal Voluntary Contraction and Muscle Thickness Relationship in Skeletal Muscle (골격근에서 최대 수의적 등척성 수축력과 근 두께와의 관계)

  • Jeong, Jin-Gyu;Kim, Yang-Ho;Kim, Tae-Youl
    • Journal of the Korean Academy of Clinical Electrophysiology
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    • v.2 no.2
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    • pp.25-37
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    • 2004
  • To provide reflection diagnostical basic-data by ultrasonography intended for 38 male/female students used by ultrasound imaging system and dynamometer, compared the MVIC and muscle thickness take an accurate measurement of elbow flexor and knee extensor of thickness and MVIC, in confirmity with distinction of sex and then analysised of correlation in muscle thickness-MVIC, MVIC-weight, weight-muscle thickness, it shows statiscally significant difference MVIC and muscle thickness according to sex. Also there is a high interrelation between two. As well as it shows that there is a different between sex in the MVIC of same thickness and MVIC of same weight. This difference will be related with preportions of muscle fiber type in view of the results by preceded research, it needs to be prerequisite analysis of difference in sex with a great variety of ways hereafter.

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Recurred Sparganosis 1 Year after Surgical Removal of a Sparganum in a Korean Woman

  • Lee, Young-Il;Seo, Min;Park, Hyun-Woo
    • Parasites, Hosts and Diseases
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    • v.52 no.1
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    • pp.75-78
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    • 2014
  • Sparganosis, an infection due to the plerocercoid of Spirometra erinacei, are found worldwide but the majority of cases occur in East Asia including Korea. This report is on a recurred case of sparganosis in the subcutaneous tissue of the right lower leg 1 year after a surgical removal of a worm from a similar region. At admission, ultrasonography (USG) of the lesion strongly suggested sparganosis, and a worm was successfully removed which turned out to be a sparganum with scolex. Since sparganum has a variable life span, and may develop into a life-threatening severe case, a patient once diagnosed as sparganosis should be properly followed-up for a certain period of time. Although imaging modalities were useful for the diagnosis of sparganosis as seen in this case, serological test such as ELISA should also be accompanied so as to support the preoperative diagnosis.

Radiopaque markers and hydrogram in feline alimentary lymphoma

  • Choi, Jihye;Lee, Jinsoo;Jang, Jaeyoung;Choi, Heeyeon;Seo, Jimin;Lee, Minjung;Kim, Hyunwook
    • Korean Journal of Veterinary Research
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    • v.52 no.2
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    • pp.147-151
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    • 2012
  • Radiography, ultrasonography with hydrogram, and contrast studies using radiopaque markers were applied to evaluate alimentary lymphoma in two cats. The hydrogram facilitated the differentiation of pseudo-thickening from true wall thickening, and enabled an evaluation of wall layering and lymph nodes. In case 1, mechanical obstruction of the duodenum was confirmed with barium-impregnated polyethylene spheres (BIPS), a radiopaque marker; however, results obtained in case 2 were not as definitive. We expect that hydrograms and BIPS can be used as valuable alternative methods to evaluate the gastrointestinal (GI) tract although further studies in cases involving GI tumors are needed.

A Case Report of Gallbladder Duplication (중복담낭 1예)

  • Choi, Byung-Uk;Cho, Yong-Pil;Yoo, Shi-Joon;Kim, In-Koo;Min, Pyung-Chul
    • Advances in pediatric surgery
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    • v.2 no.1
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    • pp.53-58
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    • 1996
  • Congenital duplication of the gallbladder, including true duplication and septated gallbladder, is an uncommon but potentially complicated malformation. It presents biliary colic associated with acute or chronic cholecystitis. It can be diagnosed preoperatively by various imaging tools such as real-time ultrasonography, biliary scintigraphy, oral cholecystography, or endoscopic retrograde cholangiography. It can be safely managed by either laparoscopic or open procedures. This report describes a 6-year-old girl with true duplication of gallbladder diagnosed preoperatively by real-time ultrasonography and treated by open cholecystectomy.

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Imaging diagnosis of extrahepatic biliary tract obstruction with acquired portosystemic shunt in a cat

  • Hwang, Tae-Sung;Jang, Won-Seok;Yoon, Young-Min;Jung, Dong-In;Lee, Hee Chun
    • Korean Journal of Veterinary Research
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    • v.58 no.4
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    • pp.227-230
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    • 2018
  • A 2-year-old, spayed female, Korean domestic short-hair cat was presented with depression and vomiting. The patient had history of weight loss lasting seven months. Physical examination revealed icterus in the pinna, oral mucosa, and sclera. Based on ultrasonography and computed tomography, tentative diagnosis was extrahepatic biliary tract obstruction with acquired portosystemic shunt (PSS). Tumor or inflammation of hepatobiliary system was suspected as the cause of obstruction of the common bile duct. But it could not be determined without biopsy. The severely dilated cystic duct was considered to cause portal hypertension and secondary multiple PSS. The patient expired without histopathologic examination.

Alcohol neurolysis of genicular nerve for chronic knee pain

  • Dass, Rushin Maria;Kim, Eunsoo;Kim, Hae-kyu;Lee, Ji Youn;Lee, Hyun Ju;Rhee, Seung Joon
    • The Korean Journal of Pain
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    • v.32 no.3
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    • pp.223-227
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    • 2019
  • Radiofrequency neurolysis (RFN) of the genicular nerves has recently become accepted as an effective technique to alleviate knee pain particularly in patients with knee osteoarthritis (OA) or postoperative pain. However, genicular nerve RFN can produce high procedure and equipment costs, longer procedural times, procedure-related pain, and failure rate of over 25%. We are presenting two cases of alcohol neurolysis of the genicular nerve using fluoroscopy and ultrasonography in patients with knee OA or persistent postsurgical pain of the knee. Alcohol neurolysis of the genicular nerve with dual imaging modality can be a cheap, safe and effective method in patients with chronic knee pain.