• Title/Summary/Keyword: MRI Scan

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Classification and treatment of 32 cases study on involuntary tremor (불수의근진전(不隨意筋振顫) 환자(患者)32례에 대한 유형별(類型別) 임상고찰(臨床考察))

  • Jeong, Myong-Geol;Lee, Won-Suk;Kim, Yong-Chan;Park, Jin-Yong
    • The Journal of Internal Korean Medicine
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    • v.21 no.5
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    • pp.773-780
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    • 2000
  • 32case study was done involuntary tremor which was diagnosed with Neurological test,Brain CT scan,Brain MRI. The results was followed; 1. Psysiological tremor was improved on 16case by Kamisoyosan and Acupuncture of Nagwan,Kongson,Sochung,Sohae,Taedon 2. Tremor was improved on 13cases of 16cases by Sasangbang,Husebang and Chezil-Acupuncture.

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Epidermoid Cyst Arising from the Corpus Callosum

  • Kim, Dok-Ryong;Kang, Hee-In;Kim, Jae-Hoon;Kim, Joo-Seung
    • Journal of Korean Neurosurgical Society
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    • v.41 no.3
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    • pp.177-179
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    • 2007
  • Most of intradural epidermoid cyst arise as slowly growing extraaxial lesions but purely intracerebral epidermoid cysts are rare. A 39-year-old female presented with a headache during several months. Brain computed tomography [CT] scan showed a mass lesion in the both frontal lobe with heterogenous density approximately $5{\times}5cm$ in size. Magnetic resonance imaging [MRI] revealed a mass of heterogenous signal intensity on T1, T2-weighted image and faint enhancement with gadolinium [Gd]. Through the both interhemispheric approach, mass was removed subtotally except the calcified portion tightly attached to the corpus callosum. The patient discharged without neurological deficit. The authors report a case of epidermoid cyst in the corpus callosum and discuss the pathogenesis of the intraparenchymal epidermoid cyst.

Multilevel Dumbbell Tumor of the Posterior Mediastinum -1 Case Report- (다범위 종격동 Dumbbell종양 - 1례 보고 -)

  • 허동명;김병호;조재훈;강동기
    • Journal of Chest Surgery
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    • v.32 no.8
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    • pp.768-771
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    • 1999
  • A 45 year old man was admitted for further examination of an abnormal shadow of the right posterior mediastinum. The patient suffered from dysesthesia in the right thoracic wall of dermatome T7. CT scan and MRI revealed that two separate tumors had developed in the right paravertebral area linked to the vertebral canal via an intervertebral foramina. One-stage removal of the tumors were performed safely through the right posterolateral thoracotomy following the resection of the rib head and vertebral pedicle. The tumors were confirmed as histologically neurilemomas. The postoperative course was uneventful.

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Clinical Application of Image Guided Surgery : Zeiss SMN System (영상유도 뇌수술 장비의 임상적 적용 : Zeiss SMN System)

  • Lee, Chea Heuck;Lee, Ho Yeon;Whang, Choong Jin
    • Journal of Korean Neurosurgical Society
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    • v.29 no.1
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    • pp.72-77
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    • 2000
  • The authors describe the experience with the interactive image-guided Zeiss SMN system, which has been applied to 20 patients with various intracranial lesions during one year. Preoperative radiologic evaluation was CT scan in 6 cases, MRI in 14 cases. In all except one case, average fiducial registration errors were less than 2mm. There was no statistical difference in registration error between CT and MR image. This system considered to be relatively stable with respect to soft and hardware. Also it was useful for the designing of the scalp incision and bone flap and assessing the extent of resection in tumors, especially in gliomas. Moreover, it was helpful to evaluate complex surgical anatomy in skull base surgery.

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Intracranial Lipoma in Medulla Oblongata

  • Yun, Ji-Kwang;Kim, Dae-Won;Kim, Tae-Young;Kim, Jong-Moon
    • Journal of Korean Neurosurgical Society
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    • v.41 no.5
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    • pp.330-332
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    • 2007
  • Intracranial lipomas are rare, and most of these tumors are found in the region of the corpus callosum, followed by cerebellopontine angle. We present a case of a intracranial lipoma in 30-year-old man. Brain computed tomography [CT] scan and magnetic resonance images [MRI] showed a mass in the medulla oblongata extending to foramen magnum. The histopathologically, diagnosis of lipoma was confirmed. Although there were several cases of cervical intraspinal lipoma extending into posterior cranial fossa, there have been no previous reports of a lipoma arising from the medulla oblongata that extended into the foramen magnum. We describe a rare case of intradural subpial lipoma in the medulla oblongata with a review of the literature.

Diagnostic Imaging of Recurred Mandibular Ameloblastoma with Large Soft Tissue Involvement

  • Park Kwan-Soo;Lee Sam-Sun;Jeon In-Seong;Choi Soon-Chul
    • Imaging Science in Dentistry
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    • v.30 no.4
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    • pp.281-285
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    • 2000
  • An uncommon case of a patient with recurrent mandibular ameloblastoma involving various adjacent soft tissues is presented with plain film radiography, computed tomography and magnetic resonance imaging (MRI) and bone scan. The tumor involved mandible and eroded several bones including foramen ovale. This case shows that although an ameloblastoma primarily affect mandible, exact radiographic evaluation of tumor extent will assist the surgeon in the progress of rational approaches to the management of ameloblastoma.

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Effect of Metals used in Orthopedic on Magnetic Resonance Imaging II (정형 보철용 금속이 자기공명영상에 미치는 영향 II)

  • Kim, Hyeong-Gyun;Choi, Seong-Dae
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.11 no.5
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    • pp.115-120
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    • 2012
  • Metals used orthopedic in human magnetic resonance imaging scan of the metal to be inserted, The information to users about the image distortion is to propose a basis for judgment. Metals used orthopedic on Stainless, Titanium and Clip using ferromagnetic artifacts and distortion of the image were measured. Using Phantom "Effect of Metals used in Orthopedic on Magnetic Resonance ImagingI" pig in a paper subsequently was carried out using the same bone. Experimental results using a pure Titanium is a relatively high diagnostic value was found that.

Dual Contrast EPI by Use of a Key Hole Technique

  • Jung, Kwan-Jin
    • Proceedings of the KSMRM Conference
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    • 2001.11a
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    • pp.113-113
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    • 2001
  • Purpose: In the gradient echo EPI the conventional T2*-weighted image is poor in signal as well distorted by the field inhomogeneity. By acquiring a proton density image in addition to th T2*-weighted image at the same scan, the fMRI processing can be improved. Method: The central region of the k space is acquired twice at different time points after th RF pulse while acquiring the other regions onc as described in Fig. 1. In Fig. 1 the segment numbers are chronological. Then, we can get two images of different contrast by interleaving th central region in the k space as done in the dua contrast FSE.

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Huge Hematoma in the Pelvic Cavity after Mechanical Valve Replacement - A Report of Case - (기계판막치환술 후 골반강내 대량출혈)

  • 신화균;김남혁;이용재;강창희;권오춘;이길노
    • Journal of Chest Surgery
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    • v.26 no.2
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    • pp.158-159
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    • 1993
  • The hemorragic episode is the major problem of mechanical prosthesis, because of the necessity for anticoagulant therapy to prevent complication of thromboembolism. Double valve replacement was performed to 42 year old male due to aortic stenoinsufficiency and mitral stenosis. For anticoagulant therapy, the patient has been given wafarin under the control of prothrombin time 0.5-2 times of normal) in the our hospital. The patient was injuried the right pelvic area by waves in the beach 4 years after double valve replacement. Pelvic MRI scan showed huge hematoma in the right pelvic cavity. The patient was operated removal of intrapelvic hematoma.

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악성뇌종양 주변부위의 역동자기공명영상의 시간신호강도곡선 양상과 예후와의 관계

  • 최순섭;김기욱;허기영;이영일
    • Proceedings of the KSMRM Conference
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    • 2003.10a
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    • pp.21-21
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    • 2003
  • 목적: 악성뇌종양 주변부위의 역동자기공명영상에서의 시간신호강도곡선 양상으로 종양의 성장 양상이나 예후를 판단할 수 있는지를 알고자 한다. 대상 및 방법: Anaplastic oligodendroglioma 3예, Anaplastic astrocytoma 1예, Glioblastoma multiforme 1예, Malignant ependymoma 2예, Medulloblastorna 1예로서, 총 8예의 종양절제전, 혹은 후의 잔류 종양을 대상으로 하였다. Routine MRI에 추가하여 종양부위에서 Turbo spin echo T1 강조 역동자기공명영상을 하였으며, Gd-DTPA 0.1 mmol/kg를 급속 주사 한 후, TR/TE, 350/15, slice thickness 6 mm, slice number 3, NEX 2회, scan time은 15 초로 하여 5 분 동안 20회 영상을 얻었다. 가시적으로 조영증강이 없는 종양의 주변부위나 수술경계부위에 관심영역을 그려서 시간신호강도곡선을 얻었으며, 첫 회 조영제 통과시의 peak 이후에 신호가 감소하는 경우를 Normal pattern으로, peak 이후에 신호가 계속 유지되거나 증가하는 경우를 Tumor pattern으로 하였으며, Normal pattern과 Tumor pattern을 보인 예들을 구분하여 종양의 재성장 상태와 환자의 생존 기간을 비교 관찰하였다.

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