T Schaub

Publications of T Schaub

• [Computed tomography following extracorporeal shockwave lithotripsy of the kidneys. III. A prospective CT study of 105 patients and a 3-year follow-up of 23 patients using CT and 99mTc-MAG3 clearance]

  Authors: T Schaub, F Schweden, U Witsch, H el-Damanhoury, H Schild, M Thelen

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 03/1993; 158(2):121-6.

  In 105 patients CT studies were done prospectively after renal ESWL with a second generation lithotripter. 33 (31%) of the patients had renal oedema (n = 8), renal (n = 20) or extrarenal (n = 31)In 105 patients CT studies were done prospectively after renal ESWL with a second generation lithotripter. 33 (31%) of the patients had renal oedema (n = 8), renal (n = 20) or extrarenal (n = 31) bleeding. Three of the 23 patients who had a three year follow-up had chronic renal changes, 10 had renal stones. As blunt renal trauma can be the cause of renal hypertension a longterm follow-up is necessary in ESWL patients, particularly if there was renal bleeding after treatment. Further studies are needed to determine the exact risk of renal hypertension after ESWL.

• [99m-Technetium-mercaptoacetyltriglycine (MAG3) for the demonstration of the kidney changes following extracorporeal shockwave lithotripsy. A prospective study of 117 patients]

  Authors: T Schaub, U Witsch, H el-Damanhoury, B Nägele-Wöhrle, K Hahn

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 11/1992; 157(4):338-43.

  Extracorporeal shock wave lithotripsy (ESWL) has become the treatment of choice for urinary calculi. 117 patients were studied prospectively with 99mTc mercaptoacetyltriglycine (MAG3) before andExtracorporeal shock wave lithotripsy (ESWL) has become the treatment of choice for urinary calculi. 117 patients were studied prospectively with 99mTc mercaptoacetyltriglycine (MAG3) before and after ESWL. 79 (66%) of the 119 kidneys treated had abnormal findings. Of these 63/119 (53%) had abnormal scans. 41 (65%) had focal lesions with a delayed intrarenal transport. The remaining 22 had a diffuse delay of intrarenal transport. A loss of relative renal function of 3% and more compared to the pretreatment values was observed in 50/119 (42%) patients. 99mTc MAG3 should be done routinely together with radiologic tests (CT or MRI) before and after ESWL to select the patients at risk for post ESWL hypertension.

• [Amyloidosis of the bone and soft tissues after a plasmacytoma. The radiological and nuclear medicine findings]

  Authors: G Doll, T Schaub, R Benning, G Zocholl

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 05/1992; 156(4):390-2.

• [Fluorosis following the uncontrolled administration of sodium fluorophosphate]

  Authors: G Doll, T Schaub, G Zocholl

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 02/1992; 156(1):96-7.

• [Computed tomography after extracorporeal shockwave lithotripsy (ESWL) of the kidneys. II. A correlation with the histopathologic findings 3 weeks later in an animal experiment]

  Authors: T Schaub, M Kunisch, M Stadtbäumer, S Störkel, H el-Damanhoury, H J Hennes, H Schild, M Thelen

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 06/1991; 154(5):541-5.

  In a pig model, 13 kidneys were treated with a second generation lithotripter and examined by CT immediately and three weeks after ESWL. 9 (69%) acute traumatic lesions were seen in CT without, andIn a pig model, 13 kidneys were treated with a second generation lithotripter and examined by CT immediately and three weeks after ESWL. 9 (69%) acute traumatic lesions were seen in CT without, and 10 (77%) in CT with contrast in the 13 treated kidneys. After 3 weeks only 1 residual lesion persisted in CT contrast studies. On the histopathologic specimens residuals of bleeding were found in 3 (23%) of the 13 kidneys treated, which could not be seen in CT studies. CT is accurate in monitoring acute traumatic renal lesions after ESWL, but appears less reliable in chronic ones. Three weeks after ESWL traumatic renal lesions show marked regression.

• [Computed tomography following extracorporeal shockwave lithotripsy (ESWL) of the kidneys. I: Correlation with acute histopathological findings in experimental animals]

  Authors: T Schaub, M Kunisch, M Stadtbäumer, S Störkel, H el-Damanhoury, H J Hennes, H Schild, M Thelen

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 04/1991; 154(3):231-7.

  In an experimental study on pigs, 28 stone-free kidneys were treated with a second generation lithotripter. Histologically, acute bleeding was seen after ESWL in 23 (82%) of the 28 treated kidneys.In an experimental study on pigs, 28 stone-free kidneys were treated with a second generation lithotripter. Histologically, acute bleeding was seen after ESWL in 23 (82%) of the 28 treated kidneys. CT studies before and after contrast were correct in 20/28 (74%) cases. It was shown that extracorporeal shock waves cause renal bleeding that is only partially detected by computed tomography. It can be concluded that the CT findings seen in a high percentage of renal stone patients after ESWL represent bleeding. The incidence of renal bleeding after ESWL and thus the possible risk of hypertension has obviously been underestimated so far in clinical studies.

• [Melorheostosis, osteopoikilosis and ostiopathia striata. Their clinical significance and the value of scintigraphy in the differential diagnosis]

  Authors: I Michiels, T Schaub, M Scheinzabach

  Beiträge zur Orthopädie und Traumatologie. 07/1990; 37(6):317-30.

  Melorheostosis, Osteopoikilosis and Osteopathia striata Clinical Relevance and Bone Scintigraphy Melorheostosis, Osteopoikilosis and Osteopathia striata are rare conditions. Although there is noMelorheostosis, Osteopoikilosis and Osteopathia striata Clinical Relevance and Bone Scintigraphy Melorheostosis, Osteopoikilosis and Osteopathia striata are rare conditions. Although there is no casual therapy for any of the three diseases, differential diagnosis is important because concomitant or resulting impairments deserve orthopaedic or medical treatment. The analysis of typical cases with their clinical, roentgenological and radionuclide presentation shows the need of an accurate diagnosis to prevent senseless treatment or lost therapeutic opportunities.

• Nuclear medicine studies in the differential diagnosis of diseases with spinal involvement.

  Authors: K Didion, B Nägele-Wöhrle, T Schaub, K Hahn

  Neurosurgical review. 02/1990; 13(1):19-24.

  Plain X-rays computed tomographic and magnetic resonance images all yield information on the pathophysiology of diseases with spinal involvement. Descriptions of the following nuclear medicinePlain X-rays computed tomographic and magnetic resonance images all yield information on the pathophysiology of diseases with spinal involvement. Descriptions of the following nuclear medicine methods are presented: Bone scanning with 99 m-technetium labeled phosphonate complexes used for the evaluation of skeletal metastases, primary bone tumors, traumatic, degenerative, and postoperative changes as well as in inflammatory conditions. Specific radionuclides used for the localization of inflammatory conditions are radioactive labeled leucocytes. Iodine total body scans used to detect spinal metastases of follicular and papillary thyroid carcinoma. 201-thalliumchloride is used as a tumor-marker with high affinity and sensitivity in malignant thyroid tumors. 131- or 123-iodine-meta-iodobenzylguanidine scans used in the detection of metastases of pheochromocytoma and neuroblastoma. Immunoscintigraphy with radioactive labeled anti-CEA antibodies used for the specific labelling of metastases of gastrointestinal tract tumors, melanoma, breast, and ovarian carcinoma. The value of the various nuclear medicine methods in the diagnostic schedule is illustrated in case reports.

• [A computed tomographic analysis of vertebral rotation before and after surgical correction of idiopathic scoliosis]

  Authors: C Hopf, T Schaub

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 11/1989; 151(4):408-13.

  Preoperative and postoperative computer tomographs in 24 patients suffering from idiopathic scolioses who were treated by CD (Cotrel-Dubousset) surgery, showed a mean correction of the rotatory anglePreoperative and postoperative computer tomographs in 24 patients suffering from idiopathic scolioses who were treated by CD (Cotrel-Dubousset) surgery, showed a mean correction of the rotatory angle in the apex vertebra amounting to 28.5% in relation to the anterior midline of the body, and 23.8% in relation to the sagittal plane. Best results were seen in lumbar curves and in the lumbar curves of double major curves. In thoracic curves only minor corrections were observed. CD instrumentation is the first dorsal procedure that allows a three-dimensional correction of the scoliotic spine.

• [The place of bone scintigraphy in the diagnosis and follow-up of Ewing's sarcoma]

  Authors: T Schaub, C Düber, A Antoniadis, D Eissner, I Greinacher, P Gutjahr, M Thelen

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 05/1989; 150(4):395-401.

  The radiological and scintigraphic findings of 26 patients with histologically proven Ewing's sarcoma were analysed. Three-phase bone scan should be done early in patients presenting with pain andThe radiological and scintigraphic findings of 26 patients with histologically proven Ewing's sarcoma were analysed. Three-phase bone scan should be done early in patients presenting with pain and normal radiographs. Perfusion and metabolism of a bone lesion can be assessed by skeletal scintigraphy. Bone metastases are first seen on bone scan. In the follow-up of the patient bone scans at regular intervals are essential to detect bone metastases and tumour recurrence. The scintigraphic findings have to be correlated with radiographs and if these are negative a short-term control is indicated. Three-phase bone scans can assess the tumours response to therapy.

• [Tumors of the ceruminous glands]

  Authors: M Gross, K Sorger, T Schaub

  Laryngologie, Rhinologie, Otologie. 10/1987; 66(9):465-8.

  Tumours originating from the ceruminous glands can be classified into five types: adenomas, adenocarcinomas, adenoid-cystic carcinomas, pleomorphic adenomas and mucoepidermoid carcinomas. TheTumours originating from the ceruminous glands can be classified into five types: adenomas, adenocarcinomas, adenoid-cystic carcinomas, pleomorphic adenomas and mucoepidermoid carcinomas. The diagnosis is based on histological findings and can be quite difficult if the tumour status has to be determined. Classification into one of the five types of tumours may be facilitated at times by studying the clinical pattern. Three case reports are quoted as examples to illustrate that neoplasias originating from the ceruminous glands can assume considerable proportions and must be considered in differential diagnosis when assessing space-occupying growths in the soft tissue of the neck. Whereas prognosis of adenomas and pleomorphic adenomas can be considered to be good, it must be regarded as likely to be infaust in the case of adenocarcinomas, adenoid-cystic carcinomas and mucoepidermoid carcinomas. The use of cytostatics resulted in a marked reduction of the tumour in one of the described cases of adenocarcinoma.

• ["False" sinking abscess]

  Authors: T Schaub, F Schweden, H Schild, M Thelen

  Röntgen-Blätter; Zeitschrift für Röntgen-Technik und medizinisch-wissenschaftliche Photographie. 06/1987; 40(5):159-60.

  In a 43 year old man with an inguinal abscess a paravertebral soft tissue swelling suggested a gravitation abscess. On CT only a retrocrural fat accumulation was identified.

• [Difficulties in the diagnosis of osteoid osteoma]

  Authors: T Schaub, A Antoniadis, I Greinacher, J Rudigier, D Eissner

  Röntgen-Blätter; Zeitschrift für Röntgen-Technik und medizinisch-wissenschaftliche Photographie. 02/1987; 40(1):26-32.

  The difficulties arising in diagnosing osteoidosteoma are demonstrated by means of 30 surgically treated cases and the results are compared with those available from the literature. The value of boneThe difficulties arising in diagnosing osteoidosteoma are demonstrated by means of 30 surgically treated cases and the results are compared with those available from the literature. The value of bone scintigraphy and of tomography within the framework of a diagnostic concept is underlined. Diagnosis is confirmed and treatment is effected by the successful surgical removal of the nidus.

• [Diagnosis of Ewing sarcoma of the thoracic spine--differential diagnostic difficulties]

  Authors: T Schaub, H M Dittrich, A Antoniadis, P Wolff, P Gutjahr

  Röntgen-Blätter; Zeitschrift für Röntgen-Technik und medizinisch-wissenschaftliche Photographie. 11/1986; 39(10):287-90.

  Spinal Ewing's sarcomas are rare and cause problems in differential diagnosis. The radiologic, nuclear medicine and CT findings in two children with histologically proven Ewing's sarcoma areSpinal Ewing's sarcomas are rare and cause problems in differential diagnosis. The radiologic, nuclear medicine and CT findings in two children with histologically proven Ewing's sarcoma are presented and problems in differential diagnosis discussed. Biopsy should be done early.

• [Diagnosis and course of synovial sarcoma. Comparison of x-ray diagnosis and bone scintigraphy]

  Authors: T Schaub, H Schild, B Werner, K Hahn, M Thelen

  RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin. 05/1986; 144(4):453-9.

  The unfavourable prognosis of malignant synoviomas makes it essential to arrive at an early diagnosis. The early clinical symptoms and radiological appearances may be minimal and sometimes absent. ItThe unfavourable prognosis of malignant synoviomas makes it essential to arrive at an early diagnosis. The early clinical symptoms and radiological appearances may be minimal and sometimes absent. It is therefore advisable to obtain bone scintigrams with perfusion and early images as well as the radiographs. The local extent of the tumour can be evaluated by ultrasound and CT. Angiography is required only if the relationship to the vessels cannot otherwise be ascertained, or if intra-arterial therapy is being considered. The final diagnosis depends on a biopsy. For subsequent observation, both scintigrams and radiographs should be obtained. It is essential to perform a three-phase scintigram. This improves the recognition of recurrences and of soft tissue or bone metastases. Most bone metastases are visible on scintigraphy, but a normal scintigram in the presence of an osteolytic lesion on a radiograph may be obtained. Pulmonary metastases can only be demonstrated radiologically.

• [Use of the tumor prosthesis in secondary neoplastic destruction of the proximal end of the femur]

  Authors: J D Rompe, P Eysel, C Hopf, J Heine, T Schaub

  Zeitschrift für Orthopädie und ihre Grenzgebiete. 131(5):446-51.

  Total hip arthroplasty was performed with PMMA-augmented tumor prostheses in 42 individuals suffering from metastatic destruction of the proximal end of the femur at the Orthopedic UniversityTotal hip arthroplasty was performed with PMMA-augmented tumor prostheses in 42 individuals suffering from metastatic destruction of the proximal end of the femur at the Orthopedic University Hospital Mainz from 1980 to 1992. Neoplastic lesions had been triggered by carcinomas of the breast in 25 female patients. 24 of our patients presented with pathologic fractures. In all patients capable of walking preoperatively early mobilization could be attained by total hip arthroplasty. Pain relief was achieved in each patient. Resection of the major trochanter and, partially, of the pelvitrochanteric muscle sleeve entailed luxation of the prosthesis six times in 5 individuals during the first postoperative two months; closed reduction was practicable in all of them. Postoperative survival time amounted to an average of 10.5 months. Leg length and hip function were successfully re-established by implanting tumor prostheses after resection of the proximal part of the femur.

• [Value of imaging techniques in the diagnosis of lumbar intervertebral disk prolapse]

  Authors: P Eysel, J D Rompe, T Schaub, A Meurer

  Zeitschrift für Orthopädie und ihre Grenzgebiete. 132(5):371-6.

  As a seeming law of nature the possibility of making use of various multiplanar sectional imaging techniques is accompanied by diagnostic exaggeration. Simple and cost effective procedures with lowAs a seeming law of nature the possibility of making use of various multiplanar sectional imaging techniques is accompanied by diagnostic exaggeration. Simple and cost effective procedures with low radiation dosage such as plain x-rays of the spine are being thrust into the background. Not seldom are patients referred to the spine surgeon with MRI or Cat scan at hand but lacking standard radiographs. As far as the assessment of intervertebral disc disease is concerned the combination of plain X-rays of the spine and computed tomography of the level in question turned out to be sufficient for indication of the operation in more than 90% of 450 patients after nucleotomie at the Orthopedic University Clinic Mainz. To our mind MRI should be restricted to cases in whom disc surgery had failed to relieve sciatica. Here it allows to distinguish between a recurrent HNP and postoperative scar tissue. In our patients myelography, an invasive procedure, has its role only in emergency diagnostics, and in the dynamic-functional examination.

• Bone scanning in the detection and follow-up of skeletal lesions in histiocytosis X.

  Authors: T Schaub, D Eissner, K Hahn, I Greinacher, J Tröger, P Gutjahr

  Annales de radiologie. 26(5):407-10.