3 research outputs found

    Evaluation of radionuclide testicular scan

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    μ˜ν•™κ³Ό/석사[ν•œκΈ€] μž„μƒμ μœΌλ‘œ μŒλ‚­λ‚΄ μ§ˆν™˜μ΄ μ˜μ‹¬λ˜λŠ” κ²½μš°λΌλ„ μ μ ˆν•œ 진단 방법이 κ°œλ°œλ˜μ§€ μ•Šμ•„ κ·Όλž˜μ— 이λ₯΄κΈ°κΉŒμ§€ 진단에 λ§Žμ€ 어렀움이 μžˆμ—ˆλ‹€. κ·ΈλŸ¬λ‚˜ μ΅œκ·Όμ—λŠ” λ™μœ„μ›μ†Œλ₯Ό μ΄μš©ν•œ κ³ ν™˜μ£Όμ‚¬κ°€ 연ꡬ 보고된 이래둜 μ—¬λŸ¬κ°€μ§€ κ³ ν™˜ μ§ˆν™˜μ˜ 감별에 큰 도움을 쀄 수 μžˆμ—ˆλ‹€. 이에 μ € μžλŠ” 1981λ…„ 11μ›”λΆ€ν„° 1982λ…„ 8μ›”κΉŒμ§€ μ—°μ„ΈλŒ€ν•™κ΅ μ˜κ³ΌλŒ€ν•™ 뢀속 μ„ΈλΈŒλž€μŠ€ λ³‘μ›μ—μ„œ κ³ ν™˜μ£Όμ‚¬λ₯Ό μ‹œν–‰ν•œ μ˜ˆμ€‘ μΆ”μ κ²€μ‚¬λ‚˜ μˆ˜μˆ μ— μ˜ν•΄ ν™•μ§„λœ 32예의 ν™˜μžλ₯Ό λŒ€μƒμœΌλ‘œ ν•˜μ—¬ 주사결과λ₯Ό 비ꡐ λΆ„μ„ν•˜μ—¬ λ‹€μŒκ³Ό 같은 결둠을 μ–»μ—ˆλ‹€. β‘  주사λ₯Ό μ‹œν–‰ν•œ 32μ˜ˆμ€‘ λΆ€κ³ ν™˜μ—Όμ΄ 13예, κ³ ν™˜μ—Όμ „μ΄ 7예, μž λ³΅κ³ ν™˜μ¦μ΄ 4예 μžˆμ—ˆμœΌλ©° κ³ ν™˜μ’…μ–‘μ΄ 2예, λ˜ν•œ 1예의 κ³ ν™˜λ†μ–‘μ΄ μžˆμ—ˆκ³  κ·Έ μ™Έμ˜ μ§ˆν™˜μ΄ 5예 μžˆμ—ˆμœΌλ©° μ „λ°˜μ μΈ μ§„λ‹¨μœ¨μ€ μ•½ 69%μ˜€λ‹€. β‘‘ λΆ€κ³ ν™˜μ—Όμ—μ„œμ˜ μ£Όμ‚¬μ†Œκ²¬μ€ ν˜ˆκ΄€μ΄¬μ˜μƒμ— μ¦κ°€λœ κ΄€λ₯˜κ°€ λ‚˜νƒ€λ‚¬μœΌλ©° μ •μ μ˜μƒμ—μ„œλŠ” 주둜 κ³ ν™˜ 츑뢀에 μ¦κ°€λœ ν™œλ™μ΄ 계속 λ‚¨μ•„μžˆμ—ˆκ³  μ•½ 85%(l1/13)의 μ§„λ‹¨μœ¨μ„ λ‚˜νƒ€λ‚΄μ—ˆλ‹€. β‘’ κ³ ν™˜μ—Όμ „μ€‘ κΈ‰μ„±μ—Όμ „μ—μ„œλŠ” κ΄€λ₯˜λŠ” λŒ€κ°œ 정상을 μœ μ§€ν•˜μ˜€μœΌλ‚˜ μ •μ μ˜μƒμ—μ„œ 병변이 μžˆλŠ” μͺ½ κ³ ν™˜ 뢀뢄에 μ›ν˜•μ˜ 결손상이 λ‚˜νƒ€λ‚¬λ‹€. κ·ΈλŸ¬λ‚˜ 계λ₯˜μ—Όμ „μ˜ κ²½μš°λŠ” κ΄€λ₯˜κ°€ μ¦κ°€λ˜μ—ˆκ³  μ •μ μ˜μƒμ—μ„œ μ€‘μ‹¬λΆ€μ˜ 결손상 μ£Όμœ„μ— μΆ©ν˜ˆμ— μ˜ν•œ λ§μ΄ˆν™˜μ΄ λ™λ°˜λ˜μ—ˆμœΌλ©° κ³ ν™˜μ—Όμ „μ˜ μ§„λ‹¨μœ¨μ€ 85%(6/7)λ₯Ό λ‚˜νƒ€λ‚΄μ—ˆλ‹€. 이와 같이 λ°©μ‚¬μ„±λ™μœ„μ›μ†Œλ₯Ό μ΄μš©ν•œ κ³ ν™˜μ£Όμ‚¬λŠ” 비ꡐ적 κ°„λ‹¨ν•˜κ³  ν™˜μžκ°€ λ°›λŠ” gonadal dose의 양이 λ§Žμ§€ μ•ŠμœΌλ©΄μ„œλ„ 각쒅 μ§ˆν™˜μ— λ”°λ₯Έ μ†Œκ²¬μ€ 비ꡐ적 νŠΉμ§•μ μ΄μ–΄μ„œ μ—¬λŸ¬κ°€μ§€ μŒλ‚­λ‚΄ μ§ˆν™˜μ˜ 감별진단에 큰 도움을 쀄 수 μžˆμ—ˆλ‹€. 특히 κΈ‰μ„± μŒλ‚­ 증상을 가진 ν™˜μžμ—μ„œ 진단과 치료 λ°©λ²•μ˜ 결정을 μœ„ν•œ 응급 κ²€μ‚¬λ‘œμ¨ μœ μš©ν•˜μ˜€λ‹€. Evaluation of Radionuclide Testicular scan Nam Yoon Huh Department of Medical Science The Graduate School, Yonsei University (Directed by professor Chang Yun Park, M.D.) There has been no adequate diagnostic method for the diagnosis of intrascrotal lesions until recent days. But after the development of radionuclide testicular scan, early and relatively accurate diagnosis of the testicular lesions are possible. So the author analyzed the 32 cases of patients who were examined by testicular scan and confirmed by follow up study or operation, and the results are as fellows; 1. These 32 cases consists of 13 cases of epididymitis, 7 cases of testicular torsion, 4 of cryptorchism, 2 of testicular tumor and etc. The over all diagnostic accuracy is about 69%. 2. In eplididymitis, the diagnostic accuracy is 85% (ll/13) and the findings of scan are increased perfusion in radionuclide angiogram and hot activity noted mainly in peripheral portion of the testicle in static image. 3. In cases of testicular torsion, dignostic accuracy is 86%(6/7). Acute torsion shows normal perfusion in angiogram and round cold area in static image. But in missed torsion, perfusion is increased and round cold area with surrounding hyperemia is noted in static image. Radionuclide testicular scan seems to be noninvasive, inexpensive easily available and simple to perform with low gonadal radiation dose. So it can be very useful as the first study in patients with acute testicular symptoms. [영문] There has been no adequate diagnostic method for the diagnosis of intrascrotal lesions until recent days. But after the development of radionuclide testicular scan, early and relatively accurate diagnosis of the testicular lesions are possible. So the author analyzed the 32 cases of patients who were examined by testicular scan and confirmed by follow up study or operation, and the results are as fellows; 1. These 32 cases consists of 13 cases of epididymitis, 7 cases of testicular torsion, 4 of cryptorchism, 2 of testicular tumor and etc. The over all diagnostic accuracy is about 69%. 2. In eplididymitis, the diagnostic accuracy is 85% (ll/13) and the findings of scan are increased perfusion in radionuclide angiogram and hot activity noted mainly in peripheral portion of the testicle in static image. 3. In cases of testicular torsion, dignostic accuracy is 86%(6/7). Acute torsion shows normal perfusion in angiogram and round cold area in static image. But in missed torsion, perfusion is increased and round cold area with surrounding hyperemia is noted in static image. Radionuclide testicular scan seems to be noninvasive, inexpensive easily available and simple to perform with low gonadal radiation dose. So it can be very useful as the first study in patients with acute testicular symptoms.restrictio

    (A) morphological study of the radioprotective effect of vasopressin on radiation induced nephritis in mice.

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    μ˜ν•™κ³Ό/박사[ν•œκΈ€] λ°©μ‚¬μ„ μœΌλ‘œ 쒅양을 μΉ˜λ£Œν•  λ•Œ 정상적인 μž₯κΈ°λ₯Ό 방사선 μ†μƒμœΌλ‘œλΆ€ν„° λ³΄ν˜Έν•¨μ€ κ·Έ μ’…μ–‘μΉ˜λ£Œμ˜ μ„±νŒ¨λ₯Ό κ°€λ¦„ν•˜λŠ” μ€‘μš”ν•œ μΈμžκ°€ λœλ‹€κ³  ν•  수 μžˆλ‹€. λ”°λΌμ„œ 정상적인 μž₯기의 방사선 κ°μˆ˜μ„±μ„ κ°μ†Œμ‹œν‚€κ±°λ‚˜ 쒅양세포와 μ •μƒμ„Έν¬μ˜ 방사선 κ°μˆ˜μ„±μ˜ 차이λ₯Ό μ¦κ°€μ‹œν‚€κΈ° μœ„ν•˜μ—¬ 방사선 보호물질이 많이 κ°œλ°œλ˜μ–΄ μ™”κ³ (Dowdy λ“±, 1950; Gray λ“±, 1952; Van den Brenk λ“±, 1966) μΌμ‹œμ  μ €μ‚°μ†Œμ¦μ„ μ΄ˆλž˜ν•˜μ—¬ 쑰직의 방사선 κ°μˆ˜μ„±μ„ μ €ν•˜μ‹œν‚€λŠ” ν˜ˆκ΄€μˆ˜μΆ•μ œλ“€μ΄ 이에 ν¬ν•¨λœλ‹€. Vasopressin은 μ΄λŸ¬ν•œ 방사선 보호물질의 ν•˜λ‚˜λ‘œμ„œ 볡강내 주사후 방사선 μ‘°μ‚¬μ‹œ, μœ„μž₯관에 λŒ€ν•œ λ³΄ν˜Έμž‘μš©μ€ 이미 μ•Œλ €μ Έ μžˆμœΌλ‚˜(이 λ“±, 1981) μ–΄λŠμ •λ„κΈ°κ°„μ˜ κ²½κ³Ό ν›„ μ‹ μž₯에 λ‚˜νƒ€λ‚˜λŠ” 방사선 μ‹ μž₯μ—Ό (radiation nephritis)에 μ–΄λ– ν•œ 영ν–₯μ„λ―ΈμΉ˜λŠ”μ§€μ— κ΄€ν•œ μ—°κ΅¬λŠ” μ•„μ§κΉŒμ§€ μ‹œν–‰λœ λ°” μ—†λ‹€. λ³Έ μ‹€ν—˜μ€ 마우슀의 볡강에 μƒλ¦¬μ‹μ—Όμˆ˜λ₯Ό μ£Όμ‚¬ν•œ ν›„ 방사선을 μ‘°μ‚¬ν•˜μ—¬ λ‚˜νƒ€λ‚˜λŠ” μ‹ μž₯의 병변과 vasopressin의 μ „μ²˜μΉ˜ ν›„ 방사선을 μ‘°μ‚¬ν•˜μ˜€μ„ λ•Œ λ‚˜νƒ€λ‚˜λŠ” μ‹ μž₯의 병변을 κ΄‘ν•™ν˜„λ―Έκ²½κ³Ό μ „μžν˜„λ―Έκ²½μ„ μ΄μš©ν•˜μ—¬ ν˜•νƒœν•™μ  관찰을 ν•˜κ³  쑰직학적 방법을 톡해 μ‹ μž₯ 내에 ν¬ν•¨λ˜λŠ” νš¨μ†Œλ³€ν™”μ™€ κ΄€μ°°, 그리고 ν˜ˆμ•‘μ˜ 생화학적 검사λ₯Ό 톡해 μ‹ μž₯κΈ°λŠ₯의 λ³€ν™” 등을 보기 μœ„ν•œ 것이닀. 체쀑 20gm λ‚΄μ™Έμ˜ 마우슀(Swiss 1015) 128마리λ₯Ό μ‚¬μš©ν•˜μ—¬ μ‹€ν—˜κ΅°μ€ 방사선 쑰사 직전vasopressin 4 units (Postacton, Ferring)λ₯Ό μƒλ¦¬μ‹μ—Όμˆ˜μ— ν˜Όν•©ν•˜μ—¬ 1 mlλ₯Ό 볡강 λ‚΄μ—μ£Όμ‚¬ν•˜μ˜€κ³  λŒ€μ‘°κ΅°μ€ μƒλ¦¬μ‹μ—Όμˆ˜λ₯Ό 1 ml μ£Όμ‚¬ν•˜μ˜€λ‹€. 방사선 쑰사 ν›„ 1, 3, 7, 15, 30, 6 0, 90일에 체쀑을 κ³„μΈ‘ν•˜κ³  ν¬μƒμ‹œμΌœ ν˜ˆμ•‘μ„ μ±„μ·¨ν•˜κ³  μ‹ μž₯을 μ μΆœν•˜μ—¬ κ΄‘ν•™ν˜„λ―Έκ²½ 검색, alkaline phosphatase ν™œμ„±λ„μ˜ 쑰직화학적 검사, μ „μžν˜„λ―Έκ²½ 검색을 μ‹œν–‰ν•˜μ˜€κ³  ν˜ˆμ•‘λ‚΄μ˜ urea nitrogen농도λ₯Ό μΈ‘μ •ν•˜μ—¬ λ‹€μŒκ³Ό 같은 κ²°κ³Όλ₯Ό μ–»μ—ˆλ‹€. 1. 방사선 μ‘°μ‚¬λ‘œ μΈν•œ μ „λ°˜μ  병변이, 쑰사후 15일 κ²½λΆ€ν„° λŒ€μ‘°κ΅°μ΄ μ‹€ν—˜κ΅°μ— λΉ„ν•˜μ—¬μ‹¬ν•˜μ˜€μœΌλ©°, μ „μžν˜„λ―Έκ²½ μ†Œκ²¬μœΌλ‘œ λ‚˜νƒ€λ‚˜λŠ” κ·Ήμ‹¬ν•œ μ„Έν¬μ˜ νŒŒκ΄΄μ–‘μƒμ€ 쑰사직후뢀터 λ‚˜νƒ€λ‚˜κΈ° μ‹œμž‘ν•˜μ—¬ λŒ€μ‘°κ΅°μ—μ„œλŠ” 60일, μ‹€ν—˜κ΅°μ—μ„œλŠ” 15일에 μž¬μƒλ˜λŠ” μ†Œκ²¬μ„ λ³΄μ˜€λ‹€. 2. Alkaline phosphatase ν™œμ„±λ„λŠ” 방사선 쑰사 ν›„ μ–‘κ΅° λͺ¨λ‘μ—μ„œ κ°μ†Œν•˜λ‹€κ°€ λŒ€μ‘°κ΅°μ—μ„œλŠ” 60일에, μ‹€ν—˜κ΅°μ—μ„œλŠ” 15일에 μ •μƒμœΌλ‘œ νšŒλ³΅λ˜λŠ” 양상을 λ³΄μ˜€λ‹€. 3. ν˜ˆμ€‘ λ‡¨μ†Œμ§ˆμ†Œμ˜ λ†λ„λŠ” 방사선 쑰사 ν›„ 7μΌκΉŒμ§€ μ–‘κ΅° λͺ¨λ‘μ—μ„œ κ°μ†Œν•˜λ‹€κ°€ μ‹€ν—˜κ΅°μ—μ„œ 15일 이후뢀터 μ¦κ°€ν•˜λŠ” μΆ”μ„Έλ₯Ό 보여 μ£Όμ—ˆλ‹€. 4. 방사선 쑰사 ν›„ λŒ€μ‘°κ΅°κ³Ό μ‹€ν—˜κ΅° 간에 μƒμ‘΄μœ¨μ˜ μ°¨μ΄λŠ” λ³Ό 수 μ—†μ—ˆλ‹€. 5. 방사선 쑰사 ν›„ μ–‘κ΅° λͺ¨λ‘ μ²΄μ€‘μ˜ κ°μ†Œλ₯Ό 보이닀가 7일 이후뢀터 μ¦κ°€ν•˜κΈ° μ‹œμž‘ν•˜μ˜€κ³  μ‹€ν—˜κ΅°μ—μ„œ 30일 이후에 μ²΄μ€‘κ°μ†Œ ν˜„μƒμ΄ λ‹€μ‹œ λ‚˜νƒ€λ‚¬λ‹€. μ΄μƒμ˜ μ†Œκ²¬μ„ μ’…ν•©ν•˜μ—¬ λ³Ό λ•Œ vasopressinμ „μ²˜μΉ˜ ν•œ ν›„ 방사선을 μ‘°μ‚¬ν•˜λ©΄ λŒ€μ‘°κ΅°μ—λΉ„ν•΄ 쑰직의 손상을 κ°€λ³κ²Œ ν•˜κ³  파괴된 쑰직의 μž¬μƒμ‹œκΈ°λ₯Ό μ•žλ‹Ήκ²¨ μ£ΌλŠ” κ²ƒμœΌλ‘œ 보아 vasopressin이 방사선에 λŒ€ν•˜μ—¬ λ³΄ν˜Ένš¨κ³Όκ°€ μžˆλ‹€κ³  μ‚¬λ£Œλœλ‹€. [영문] Vasopressin is known to be a radioprotective substance due to its vasoconstriction action which results in temporary hypoxia. Total of 128 mice (Swiss 1015) were used as experimental animal. Following intraperitoneal injection of vasopressin, radiation (1000 rads) was administered to mice and biochemical and morphological studies were performed on their kidneys. Results obtained were as follows : 1. Morphologically, differences between control and experimental groups appeared 15 days after irradiation. The experimental group exhibited less cellular damage than the control group. Electron microscopic findings showed that there was severe cellular destruction immediately after irradiation, and that cellular regeneration had begun 15 days after irradiation in the experimental group and 60 days after irradiation in the control group. 2. Both groups showed a decrease in alkaline phosphatase activity following irradiation. A return to normal enzyme levels began 15 days after irradiation in the experimental group and 60 days after irradiation in the control group. 3. The concentration of blood urea nitrogen(BUN) decreased in both groups for 7 drys following irradiation. The experimental group began to demonstate an increase in BUN 15 days after irradiation. 4. There was no difference in survival rate between control and experimental groups. 5. Both groups exhibited a weight loss immediately after irradiation and a weight gain which began 7 days following irradiation. Summarizing the above data, vasopressin seems to have a radioprotective effect on the kidney. Radiation after vasopressin injection causes less damage and shortens the amount of time needed for the regeneration of renal tissue.restrictio
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