The transarterial embolization procedures have been performed in a total of 38 patients with head and necklesions, including 5 carotid-carvernous fistulas, 1 internal carotid aneurysm, 10 meningiomas, 16 nasopharyngealangiofibromas, 1 post-traumatic epistaxis and 5 other vascular tumors, over the 18 months-period. Six cases of C-Cfistulas and ICA aneurysm were treated with the detachable balloon catheter technique. The meningiomas, angiofibromas and all other lesions were embolized with superselection of the branches of the external carotidartery such as the internal maxillary, the middle meningeal, the ascending pharyngeal, the facial or otherbronches, using Berenstein superselective catheters of conventional angiographic catheters. The PVA(polyvinylalcohol foam) and/or Gelfoam particles were used as embolic materials in these cases. Most of the lesions weresuccessfully embolized with minor transient complications such as pain, headache, vomitting, fever and etc. But in4 cases occurred the serious complications; one cerebral hemorrhage, two cerebral infarctions, and one acutelaryngeal edema. The selection of the embolic materials and the catheters, and the complications are brieflydiscussed.
Aneurysm ; Angiofibroma ; Catheters ; Cerebral Hemorrhage ; Cerebral Infarction ; Edema ; Epistaxis ; Fever ; Fistula ; Gelatin Sponge, Absorbable ; Head ; Headache ; Humans ; Meningioma ; Neck

Eighty primary Harris-Galante Porus (HGP) total hip replacements were performed at Severance Hospital from January 1986 to January 1989. A minimum of 18 months follow-up was available for 80 hips in 72 patients, whose mean age was fifty two years. The most common presenting diagnosis was avascular necrosis (47.5%) followed by fused hips (10%), tuberculosis (10%), rheumatoid arthritis (7.5%). Complications included three calcar cracks and two immediate dislocations and 6 cases of mild myositis ossificans. There were no infections and no revisions. The mean Harris hip score was 93 points (range, 74–100 points) at two years. The thigh pain was in nine patients (11 per cent) at one year and in three patients (3 per cent) at two years postoperatively. Radiographic analysis revealed that, a progressive radiodense femoral line developed in 21 hips (26 per cent); a progressive acetabular line in 3 hips (4 per cent); and decreased proximal femoral density in 28 hips (35 per cent). There were no position change of the acetabula and femoral compent. We conclude that the early overall clinical results of HGP total hip replacements are encouraging, at average 30 months. The prognostic significance of the radiographic changes such ar radiodense lines, the changes of the proximal femur and cortical thickening, have to be determined with longer follow-up. Long term follow-up of uncemented HGP total hip replacement is necessary to evaluate the efficacy of such implants.
Acetabulum ; Arthritis, Rheumatoid ; Arthroplasty, Replacement, Hip ; Diagnosis ; Dislocations ; Femur ; Follow-Up Studies ; Hip ; Humans ; Myositis Ossificans ; Necrosis ; Thigh ; Tuberculosis

No abstract available.
Contrast Media* ; Magnetic Resonance Imaging*

PURPOSE: Authors reviewed CT and MR findings of patients with parapharyngeal masses, and their incidence and characteristic findings were studied. MATERIALS AND METHODS: We reviewed 27 CT and 9 MR of pathologically proven 29 patients with primary parapharyngeal mass Neurogenic tumor (17 cases) and other rare masses (3 carotid body tumors, 2 pleomorphic adenomas, 2 cavernous hemangiomas, 1 cavernous lymphangioma, 2 carotid artery pseudoaneurysms, 1 non-Hodgkin's lymphoma, 1 idiopathic cervical fibrosis) were included and the characteristic CT and MR findings were studied. RESULTS: Neurilemmoma was seen as a well-demarcated, solid mass of heterogeneous attenuation or intensity, so that pleomorphic adenoma of minor salivary gland origin could not be differentiated by demarcation, attenuation, or signal intensity of the tumor itself. The direction of carotid artery displacement was not constant in cases of neurilemmomas while the styloid process was constantly displaced laterally in all cases. Characteristic CT and MR findings of other rare tumors were described. CONCLUSION: Neurogenic tumor is the most common parapharyngeal space mass and the direction of displacement of styloid process might be helpful in differential diagnosis from pleomorphic adenoma. Other rare tumors showed very characteristic CT and MR finidings and could be differentiated easily.
Adenoma, Pleomorphic ; Aneurysm, False ; Carotid Arteries ; Carotid Body Tumor ; Diagnosis, Differential ; Hemangioma, Cavernous ; Humans ; Incidence ; Lymphangioma ; Lymphoma, Non-Hodgkin ; Neurilemmoma ; Salivary Glands, Minor

197 spine CTs were performed from 29th, March 1982 to 7th March, 1984. Among them, 39 patients preoperatively diagnosed as herniated nucleus pulposus ar bulging disc with CT and myelography were operated. 43 disc spaces ofdisc disease were analysed in true positive and false negative cases. Finally the accuracy, sensitivity and specifictiy of spine CT and myelography ar calculated. The resuslts are as follows; 1. The CT findings of disc diseases are in order of frequency, asymmetrical obliteration of epidural fat (82%), ventral indentation orcompression on dural sac(72%), focal protrusion of disc(64%), root changs
Constriction, Pathologic ; Humans ; Hypertrophy ; Intervertebral Disc Displacement ; Methods ; Myelography ; Spine ; Vacuum ; Zygapophyseal Joint

Thirty-six patients (24 with oral cavity or oropharynx cancers and 12 larynx cancers) were prospectively examined with computed tomography (CT) to determine its value in staging the primary tumor and to compare with the clinical staging. The CT staging agreed with the clinical staging in 50% (12/24) of the oral cavity or oropharynx cancers and in 67% (8/12) of the larynx cancers. The CT upgraded the clinical staging in 29% (7/24) of the oral cavity or oropharynx tumors and in 33% (4/12) of the larynx cancers, whereas the CT downgraded the clinical staging in 21 % (5/24) of the oral cavity or oropharynx cancers. There is no downgrade on CT in larynx cancer. The post-surgical confirmation was not made in most of the cases. The possible causes of disagreement between the CT and the clinical staging, and the diagnostic value of the CT in evaluation of the primary tumor in oral cavity, oropharynx and larynx were discussed.
Head and Neck Neoplasms ; Head ; Humans ; Laryngeal Neoplasms ; Larynx ; Mouth ; Oropharyngeal Neoplasms ; Oropharynx ; Prospective Studies

Fity-four patients with head and neck cancers were prospectively examined with the CT to determine its valuein staging cervical lymph nodes metastases and to compare with the clinical staging. The CT staging agreed withthe clinical staging in 61%(33/54), upgraded the clinical staging in 22%(12/54) and downgraded in 17%(9/54). Thepost-surgical confirmation was made in only 11 patients, The possible causes of disagreement between the CT andthe clinical staging, and the diagnostic value of the CT in the evaluation of the cervical nodes metastases werediscussed.
Head and Neck Neoplasms ; Head ; Humans ; Lymph Nodes ; Neck ; Neoplasm Metastasis ; Prospective Studies

Eighty-eight patients who presented with a variety of head and neck symptoms were examined with intravenous oritraarterial digital subtraction angiography (IV or IA DSA), using the DSA equipment developed by Seoul NationalUniversity Hospital. A grading system was used to evaluate the ability of DSA to answer specific diagnsoticquestions. Diagnostic information without need of further study was obtained in 71% with IV DSA, in 86% withaortic arch DSA and in 81% with selective arterial DSA, showing a total of 79% of diagnostic accuracy with DSA. Itis concluded that IV DSA is useful in the evaluation of the cervical carotid and vertebral arterial disease, andpituitary mass lesion, while IA DSA is useful in the evaluation of the cervical carotid and vertebral arterialdisease, and pituitary mass lesion, while IA DSA is useful in the evaluation of most of the intracranial lesions,spinal arteriography and intra-arterial embolization. DSA is both an accurate and safe imaging modality in thestudy of head and neck diseases.
Angiography ; Angiography, Digital Subtraction ; Head ; Humans ; Neck ; Seoul

Liquid crystal thermography is a new diagnostic imaging method detecting the temperature change by the physiologic disturbance as compared with the radilogic method detecting the anatomical distortion. We have used liquid crystal thermography in 54 patients with complaining low back pain during the period form 2nd. March 1989 to 30th. April 1989. Of these 54 patients, 35 had myelography and C-T scan, 23 had EMG, and 13 were operated upon. 1. There were 35 clinically positive patients on whom concomitant myelography and C-T scan was performed; 32 patients(91%) had a positive myelography and C-T scan, and 30 patients (86%) had a positive thermography. Of these 35 patients, 23 had EMG concomitantly; 17 patients(74%) had a positive EMG and 18 patients(78%) had a positive thermography. 2. Liquid crystal thermography correlated with myelography and C-T scan in 31 patients(89%), EMG in 18 patients(78%). 3. Concomitant thermography, myelography and C-T scan, and surgery were performed on 13 patients among them EMG was added on 5 patients; Myelography and C-T scan had 100% accuracy, thermography had 92% accuracy, and EMG had 80 % accuracy. 4. Liquid crystal thermography is non-invasive method, dose not involve the use of ionizing radiation, and correlates well with clinical and surgical findings and other diagnostic methods, and costs relatively low. So, liquid crystal thermography is useful and reliable diagnostic method in patients with low back pain.
Diagnostic Imaging ; Humans ; Liquid Crystals ; Low Back Pain ; Methods ; Myelography ; Radiation, Ionizing ; Thermography

We have retrospectively analyzed the clinical and radiological outcome in 22 cervical spondylotic myeloradiculopathy patients who underwent combined front anterior decompression and fusion) and back (open door laminoplasty) surgery between Mar. 1991 and Jan. 1995. Clinical symptoms were evaluated by Japanese Orthopaedic Association(JOA) score and the recovery rate. Plain radiogram and MIR were taken before and after surgery, and then the cervical curvature, change of body to canal ratio and the A-P compression ratio of the cord were measured and compared to the clinical symptoms. Results : The mean JOA score increased from 10.1±3.3 preoperatively to 14.7±1.4 at the final follow-up with a mean recovery rate of 64.4%. No patients deteriorated as a result of the combined procedure. Post-op. radiograms showed an increasement of body to ratios (average 0.69±0.09 pre-op. to 1.0±0.13 post-op.) and maintenance or recovery of cervical Lordosis. On MRI, the A-P compression ratios of the cord were increased with recovery of subarachnoid space after the operation in most cases (average 38.4±7.6 pre-op. to 55.7±7.2 post-op.). Conclusion : This combined procedure safely and effectively resulted in decompression of the spinal cord and good functional recovery in patients with 1) anterior and posterior pathology, 2) narrow spinal canal and large spondylotic bar or herniated disc encroaching the spinal canal more than 5mm, 3) narrow spinal canal and kyphotic deformity, 4) narrow spinal canal and segmental instability, 5) multisegmental cord compression and severe radiculopathy.
Animals ; Asian Continental Ancestry Group ; Congenital Abnormalities ; Decompression ; Follow-Up Studies ; Humans ; Intervertebral Disc Displacement ; Lordosis ; Magnetic Resonance Imaging ; Pathology ; Radiculopathy ; Retrospective Studies ; Spinal Canal ; Spinal Cord ; Subarachnoid Space