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Biomedical subjects

T Heuchemer

Publications and source records attributed to T Heuchemer.

12 recordsLinked to original sources
PubMed1992

[The diagnosis of spinal trauma: the indication for CT and myelo-CT on the day of the injury].

During a period of 24 months, 211 patients were investigated in our radiological clinic by emergency CT of the spine on the day of the injury. In 128 (61%) a traumatic lesion could be demonstrated. Most frequently involved were the transitional zones of the spine (occipito-atlanto-axial segment, cervico-thoracic and thoracolumbar segments). In 68% of these patients, conventional radiographs of the spine of these critical zones proved to be inadequate. 20% of the lesions demonstrated by CT could not be seen on conventional radiographs and 41% were shown incompletely. In 61% of cases CT provided additional information when compared with conventional radiography.

Emergencies↗
PubMed1992

[Computerized tomography of intra-articular calcaneus fracture. Comparison: radiomorphologic result--clinical result].

In 55 patients with intraarticular fracture of the calcaneus computed tomography of the fractured bone was performed immediately after the accident and 6-12 months later. We recorded the fracture type according to the classification established by Essex-Lopresti. We evaluated the degree of bony destruction, deformation of the calcaneus and the extent of articular bursting. We recorded the severity of the fracture with reference to a 10-point scale and compared this with the clinical outcome after surgery or conservative therapy. The clinical results were according to a 18-point scale devised by Merle d'Aubigne. Changes between the initial and follow-up CT were also recorded. There was a good correlation between radiological findings and clinical results.

Adolescent↗
PubMed1990

[The use of sonography in the diagnosis of fresh talofibular ligamentous lesions].

Sonography of the ankle joint is a simple method of exploring articular soft tissue. 100 patients with acute injury of the lateral ligaments were examined with a 7.5 MHz linear array transducer. Diagnostic criteria were haematoma and capsular deformation. Sonographic findings were assessed by stress films (n = 94), arthrography (n = 29) and operative evaluation (n = 28). In 94 of 100 joints, acute injury could be demonstrated with sonography. In most cases sonography was able to differentiate the site of the lesion: anterior talofibular or fibulocalcaneal ligament. The positive predictive value in relation to the operative findings is 100% for talofibular ligament and 96% for fibulocalcaneal ligament.

Adult↗
PubMed1989

[Sonographic images of meniscus lesions].

The various types of meniscal lesion including longitudinal, horizontal and transverse tears, bucket handle tears (displaced or non-displaced) as well as tears of the meniscus base can be visualized in differing sonographic views. Our results on 39 patients, whom we sonographed and then controlled operatively, show that the different meniscal lesions are not reliably differentiated by ultrasound. Depending on the view chosen, similar sonographic displays result for all of the lesions under discussion. Only a smooth reflecting plane in the otherwise homogeneous structure of the meniscus is proof of the existence of a meniscal lesion.

Diagnosis, Differential↗
PubMed1988

[Advantages in the diagnosis and classification of intra-articular fractures of the calcaneus using computed tomography].

The superiority of CT over conventional radiography in demonstrating intra-articular fractures of the os calcis was demonstrated in 34 patients. The advantages consist in being able to demonstrate the joint without superposition and the exact demonstration of the position, size, shape and number of fragments. Shortening or widening of the os calcis can be easily recognized, as well as fractures of the medial or lateral cortex. At the same time it is possible to evaluate soft tissues, particularly the peroneal ligament. The conventional classification of calcaneal fractures has been newly evaluated in the light of the ability to recognize involvement of the joint and the course of the main fracture lines.

Adolescent↗
PubMed1987

[Criteria for evaluating fractures and luxations of the upper cervical vertebrae using conventional x-ray technics].

To assess the diagnostic value of conventional x-ray examination in fresh injuries of the cervical vertebral column, 57 cases of dislocation or fracture of the cervical vertebral column were evaluated. This study revealed the special value of conventional tomography of the cervical vertebral column in vertebral body fractures without essential dislocation of fragments or without disturbing the frame structure of the vertebral bodies. Conventional tomography will always reveal in case of dislocation the exact relative positions of the disjointed articulate areas, whereas in dislocation fractures it is also possible to identify additional fractures in the vertebral arch and articular process areas, even if the x-ray film or plain radiography merely shows a defective position. The individual diagnostic criteria of fracture and dislocation of the upper cervical vertebral column are examined in respect of their diagnostic value.

Cervical Vertebrae↗
PubMed1984

[Wheat bran-type roughage reduces the lithogenicity of bile].

The effect of 30 g wheat bran on the lithogenic potency of bile was studied in ten healthy males (age 25.5 +/- 0.76 years; height 182.9 +/- 2.1 cm, weight 76.8 +/- 2.3 kg). Wheat bran was taken for over six weeks, at 15 g twice daily. Bile fluid was sucked out from the prepapilla after bile stimulation. Contraction of the gallbladder was checked by ultrasound. Concentration of total bile acids and bile acid spectrum, as well as the concentration of phospholipids, remained unchanged for the six weeks of increased wheat bran intake. Cholesterol concentration in bile decreased from 3.27 +/- 0.89 mmol/l to 2.50 +/- 0.67 mmol/l. The lithogenic index fell from 1.01 +/- 0.14 to 0.67 +/- 0.11. Concentrations and composition of lipids and lipoproteins in serum remained unchanged. An increased intake of wheat bran was thus shown to be a decisive dietary measure in the prevention and treatment of cholesterol gallstones.

Adult↗
PubMedDate not supplied

[Clinical use of meniscus sonography].

We report on the sonography of the meniscus as a new non-invasive imaging technique for diagnosis of traumatic lesions of the menisci of the knee joint. Using an efficient ultrasound equipment with a 7.5 MHz sectorscanner, the sonographic imaging of all parts of the medial and the lateral meniscus is regularly successful. During 10 months more than 200 patients with symptoms of a traumatic meniscal lesion got a sonographic examination in our hospital. The results show that in 86% there is an identity with the operative findings. By sonographic imaging there can be seen longitudinal and transversal ruptures, 'fishmouth' - and 'bucket - handle' lesions and complete detachment of the meniscus. Decisive for the diagnosis is a hyperechogenic zone running through the homogeneous gray meniscus. With ultrasound, it is regularly possible to get information about the locality and the extension, but not about the kind of lesion.

Adolescent↗