根尖部病変の処置にMR画像診断を応用した2症例  [in Japanese] MR assessment for treatment of periapical lesion  [in Japanese]

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Author(s)

    • 土田 眞美 TSUCHIDA Mami
    • 鶴見大学歯学部第二歯科保存学教室 Department of Periodontics and Endodontics Tsurumi University, School of Dental Medicine
    • 小澤 寿子 OZAWA Toshiko
    • 鶴見大学歯学部第二歯科保存学教室 Department of Periodontics and Endodontics Tsurumi University, School of Dental Medicine
    • 滝澤 久 TAKIZAWA Hisashi
    • 鶴見大学歯学部第二歯科保存学教室 Department of Periodontics and Endodontics Tsurumi University, School of Dental Medicine
    • 中村 治郎 NAKAMURA Jiro
    • 鶴見大学歯学部第二歯科保存学教室 Department of Periodontics and Endodontics Tsurumi University, School of Dental Medicine

Abstract

<p><b>Abstract : </b>The magnetic resonance image (MRI) has recently been prevalent for the diagnosis of tumors and TMJ disorders.</p><p> Compared with the conventional radiograph, MRI has the following advantages ; </p><p> 1. No risk of ionizing radiation exporsure.</p><p> 2. Less limitation in setting the body section for conventional tomography.</p><p> 3. Better identification of inflammation and anatomical structure in the soft tissue.</p><p>  This study concerned with MR assessment and diagnosis of the periapical lesions found in two patients.</p><p> Case 1 : The patient had no clinical symptoms. The large periapical lesion was well defined on radiography.</p><p> On MRI, the lesion had the signal of very high in T2W image and low/iso mixed in T1W image.</p><p> These findings obtained by MRI showed the typical characteristic of cyst, which had a good agreement with the histopathological diagnosis.</p><p> Case 2 : The Patient complained of the swelling in gingiva.</p><p> The small periapical lesion involving one tooth was ill defined on radiograph.</p><p> On MRI, signals of bone marrow was low and extended to three adjoining teeth by T1W image. Although clinical diagnosis was acute periapical periodontitis, with the use of MRI, this case was diagnosed as osteomyelitis of mandible.</p>

Journal

  • The Journal of Japan Endodontic Association

    The Journal of Japan Endodontic Association 16(2), 254-260, 1995-12-25

    Japan Endodontic Association

References:  9

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008153699
  • NII NACSIS-CAT ID (NCID)
    AN10443184
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    13406248
  • Data Source
    CJP  CJPref  J-STAGE 
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