透析患者の合併症に対するＭＲＩの有用性

DOI

書誌事項

タイトル別名
  • Usefulness of MRI for complications in hemodialysis patients.

この論文をさがす

抄録

We used MRI, a non-invasive imaging diagnostic technique, to diagnose complications in hemodialysis patients, and found that this technique was useful. The subjects were five hemodialysis patients with complications from the following diseases: metastatic tumor of the cervical vertebrae (Case 1 ); Grawitz tumor invading the pelvis (Case 2); arterial myxoma (Case 3); subcutaneous amyloid tumor (Case 4); liver abscess accompanied by acute renal failure (Case 5). For comparison, conventional imaging techniques such as CT, ultrasound, and standard X-rays were also used. The MRI equipment used was a MAGNETOM M5.<br>Cases 1 and 2: MRI was useful in diagnosing tumor metastasis into the bone because of its high resolving power, especially for distinguishing among tissues. Case 3: The valve ports and intracardiac structures could be clearly visualized by ECG gated MRI. For diagnosing diseases in the cardiovascular system, contrast media have been used in the past. However, since the excretion of the contrast media occurs via the kidney, using such drugs on hemodialysis patients has been considered undesirable, and thus the role of MRI as a diagnostic technique is likely to increase especially in the latter region in the future. Case 4: Although there have been no previous reports on the use of MRI for finding amyloid deposition associated with hemodialysis, a low-signal mass could be identified in the subcutaneous fat layer in both T1-weighted and T2-weighted images. The invasion of amyloid was also observed in a portion of the muscle layer. These findings agreed with those obtained at operation. Case 5: The liver abscess capsule was vosualized using MRI.<br>Various imaging techniques are currently used for the early diagnosis of complications in hemodialysis patients and for the assessment of therapeutic effects. The role of MRI in this workup has not yet been established, but it is highly possible that the scope of its indications will increase in the future.

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ