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Brain and Nerve No to Shinkei Volume 40, Issue 6 （June 1988）

Brain and Nerve 脳と神経 40巻6号（1988年6月発行）

Japanese English

原著

CTスキャンによる頭蓋内石灰化（第1報）—松果体部石灰化 INTRACRANIAL PHYSIOLOGICAL CALCIFICATION ON COMPUTED TOMOGRAPHY (PART 1): CALCIFICATION OF PINEAL REGION 郭隆璨 ¹ , 竹内文彦 ¹ , 伊東正太郎 ¹ , 角家暁 ¹ Ryungchan Kwak ¹ , Fumihiko Takeuchi ¹ , Shotaro Ito ¹ , Satoru Kadoya ¹ ¹金沢医科大学脳神経外科 ¹Department of Neurosurgery, Kanazawa Medical University pp.569-574

発行日 1988年6月1日 Published Date 1988/6/1

DOI https://doi.org/10.11477/mf.1406206122

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Abstract 文献概要
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　抄録　頭蓋内生理的石灰化のうち頻度の高い松果体部，側脳室脈絡叢，大脳基底核の石灰化について，年齢別，性別，使用機種別頻度などを検討した。対象は頭部単純CTスキャンを行った連続2877例（男性1450例，女性1427例）である。ただし検討部位の病的石灰化例は除外した。使用CTスキャナーは3種（SCN−200, Somatom 2, TCT−10 A）である。全体としては石灰化は松果体部67.7％，側脳室脈絡叢57.6％，大脳基底核7.5％で松果体部石灰化が最も多かった。第1報の本稿では最も頻度の高い松果体部石灰化について詳しく検討した。松果体部石灰化は年齢と密接な相関を有し，加齢と共に増加した。最年少者は8歳で，10歳代前半から30歳代までは急速に増加し，以後ゆるやかに増加を続け，70歳代で81.5％に達し，以後横ばいとなった。20歳以上に限ると75.1％（男性82.6％，女性68.0％）が石灰化を示した。20〜79歳では男性は女性より有意に石灰化が多かった。3種のCTスキャナー別にみた石灰化頻度に差はみられたが，有意ではなかった。スライス厚さ8mmおよび10mmでは有意差はなかった。

Of intracranial physiological calcification, com-mon calcification of pineal region, choroid plexus of lateral ventricles and of basal ganglia was ex-amined based on the frequency of occurence of age and sex and type of CT scanners.

Consecutive cases of 2877 (1450 males and 1427 females) underwent plain CT scanning were stu-died. Pathological calcification was excluded from this study. Three types of CT scanners (SCN-200, Somatom 2 and TCT-10 A) were used.

As a whole, calcification was shown in 67.7% in pineal region, 57.6% in choroid plexus of lateral ventricles and 7. 5% in basal ganglia. First, we reported in detail the calcification of pineal region, in which calcification occurred most frequently.

Calcification in pineal region had a close relation with age by increasing with aging. The youngest patient was 8 years old. There was a striking increase in number of patients aged from 10 to 39 years. There was a gradual increase in those aged over 40 years. Of patients aged from 70 to 79 years, calcification was found in 81.5%. The incidence was noted no changes in patients aged over 80 years. As for patients aged over 20 years, calcification was observed in 75. 1% (82.6% males and 68.0% females). In patients aged from 20 to 79 years, the calcification was significantly higher in male than female.

Although there was a different incidence of calcification examined by three types of CT scan-ners, it was not significant. There was no signi-ficant difference between thickness of 8mm section and 10mm.