PURPOSE: Purpose :To evaluate the position and transverse dimension of the adult optic chiasm in normal Korean adult. MATERIALS AND METHODS: The authors analysed 3D coronal volume images (TR/TE= 30/13, flip angle= 30 degrees) of 136 normal adult subjects without known visual abnormality. All MRI examinations were performed using a 0.5T system. MRI was reviewed retrospectively to determine the position (horizontal and tilted) of the potic chiosm and the transverse dimension of the optic chiasm was measured. RESULTS: Seventy-five (55%) of 136 normal subjects had horizontal position, and sixty-one (45%) had tilted position. Thirty-eight (62%) of 61 with tilted position showed higher position on the right side, and twenty-three (38%) showed higher position on the side. The average transverse dimension(mean SD) was 15.2 +/- 0.7mm in men and 14.6 +/- 1.0mm in women. The difference of transverse dimension between men and women was statistically significant. CONCLUSION: Tilted position of the adult optic chiasm on coronal MRI was seen in approximately half of normal adults. The average of transverse dimension of normal optic chiasm was 15mm.
Adult* ; Female ; Humans ; Magnetic Resonance Imaging* ; Male ; Optic Chiasm* ; Retrospective Studies

No abstract available.
Fibrin Tissue Adhesive ; Fibrin ; Surgery, Oral

To analyze the changes of range of motion and manifestation frequency of impingement sign according to ages in shoulder impingement syndrome after excluding complete rotator tears by MRI, the authors reviewed 74 patients whose impingement injection tests to the subacromial space were positive in the Dankook university hospital. We used paired student t-test for comparison with the contralateral shoulder. l. Average forward elevation, abduction, external rotation and internal rotation of the shoulders were not significantly different in stage I and II, but significantly different statistically in stage II over 40 years old. 2. Average external rotation at 90degrees abductions of the shoulders was not significantly different statistically in stage I, II and stage II over 40 years old. 3. Frequencies of the painful arc were 83% in stage I, 71% in stage II and 58 % in stage II over 40 years old. Physical examinations of painful arc in 1 case of stage II, 7 cases of stage II over 40 years old were impossible because of limitation of motion. 4. Frequencies of lateral impingement sign were 100% in stage I, 86% in stage II, 100% in stage II over 40 years old. Frequencies of Neer's impingement sign were 75% in stage I, 67% in stage II, 88% in stage II over 40 years old. Frequencies of Hawkins impingement sign were 67% in stage I, 62% in stage II and 82% in stage over 40 years old. Except external rotation at 90degrees abduction, range of motion of the shoulder may be decreased in impingement syndrome over 40 years old. Because of difference of frequencies, more than two impingement signs should be tested for the diagnosis of shoulder impingement syndrome.
Adult ; Diagnosis ; Humans ; Magnetic Resonance Imaging ; Physical Examination ; Range of Motion, Articular ; Shoulder Impingement Syndrome* ; Shoulder Joint ; Shoulder*

To evaluate the characteristics of MR findings in osteomyelitis, retrospective MR image interpretations were made in 18 patients with osteomyelitis proved either either by surgery(n=17) or clinical course(n=1). Osteomyelitis was acute in five patients, subacute in five, chronic in seven, and healed in one. Area of active inflammation had low marrow marrow signal intensity on T1-weighted images, high signal intensity on T2-weighted images inhomogeneously. It has been said that morrphologic characteristics of osteomyelitis in MR improved the accuracy in diagnosis of osteomyelitis and that gadolinium enhanced MR image further assisted in the planning of surgery. Out study was performed to observe the signal intensity change or morphologic change of bone marrow, cortex, periosteal reaction, and soft tissue which are specific for osteomyelitis. Multiple inhomogensous round marrow lesions were noted with central high signal intensity and peripheral low signal intensity on T1-weighted images, and central low signal intensity and peripheral high signal intensity on T2 weighted images in two patients. Intra and extraosseous abscesses showed rim enhancement after gadopentetate dimeglumine injectron. The signal intensity of the relatively higher than the internal area of the abscess on T1-weighted images. Cortical bone destruction showed high signal intensities T2-weighted images with destruction patterns of fine radial, circumferential, vertical or wedge shaped. MR imaging, by displaying specific signal intensities and morphological changes of bone marrow, cortex, periosteal reaction and soft tissue, would be an aid in early diagnosis and in planning for appropriate conservative and operative therapeutic procedures for osteomyelitis.
Abscess ; Bone Marrow ; Diagnosis ; Early Diagnosis ; Extremities* ; Gadolinium ; Gadolinium DTPA ; Humans ; Inflammation ; Magnetic Resonance Imaging* ; Osteomyelitis* ; Retrospective Studies

No abstract available.
Humans ; Lung Neoplasms* ; Lung* ; Survival Analysis*

Measurement of the normal pituitary gland height was performed on magnetic resonance (MR) images of 144 subjects with no known or suspected pituitary or hypothalamic diseases. Midsagittal T1 weighted images (T1WI) were used for measurement, and mean vertical height according to age and sex group was obtained. In all age groups, the pituitary height was greater in females than in meles, The group of 0-9 years in both genders showed the minimum mean pituitary height, The maximum mean height was observed in the 10-19 years age group in both genders. The height gradually decreased with increasing age after age 20 years. There was no subject with a height more than 9.0 mm in females or 8.0 mm in males. In conclusion the measurement of the normal pituitary pland height using mid sagittal MR imaging can be used for the evaluation of the pituitary gland lesions.
Female ; Humans ; Hypothalamic Diseases ; Magnetic Resonance Imaging ; Male ; Pituitary Gland* ; Sex Differentiation*

BACKGROUND: Keloids and hypertrophic scars are benign fibrous growths which usually occur in predisposed individuals after trauma. Numerous modalities have been used to treat keloids and hypertrophic scars, but the final results have been so far unsatisfactory. OBJECTIVE: The purpose of tlis study was to evaluate the effect of the combination of cryosurgery and intralesional corticoster oid for treatment of these scars. METHOD: Thirty patients, aged 17 to 45 years old, with keloids or hypertrophic scars(mean duration, 6.4 years) were treated using solid CO2 followed by intralesional injection of triamcinolone acetonide(13.3 mg/ml). Two freeze-thaw cycles per lesion were employed. Freezing time was chosen arbitrarily from 7 to 20 sec depending on the characteristics of each scar. RESULTS: The results are summarized as follows. 1. Excellent and good results were achieved in 57% of all subjects on average, 77% of those who were treated more than 3 times, and 48% of those treated less than twice. 2. The keloid of less than 2 years duration showed better results than older ones. 3. No recurrence was seen in 63% of patients, but partial recurrence in 21% of patients and complete recurrence in 10% were observed. Lesions on the trunk showed less improvement (p<0.05) and were more recurrent than other lesions. 4. There were complications in 9 patients, such as hyperpigmentation(6), hypopigmentation(1), infection(1) and telangiectasia(1). CONCLUSION: Cryosurgery and intralesional corticosteroid injections produced synergistic advantages. A cornbination of these modalities might be an effective treatment modality in keloids and hypertrophic scars.
Cicatrix ; Cicatrix, Hypertrophic* ; Cryosurgery* ; Freezing ; Humans ; Injections, Intralesional ; Keloid* ; Middle Aged ; Recurrence ; Triamcinolone

Sporotrichosis is an infection of worldwide distribution caused by the fungal organiam sporotrichum schenckii. The disease is usually of the primary cutaneous variety with involvement of regionaI lymphatics, although dissemination may occur. A case of lymphatic type of Syorotrichosis affecting 33 years old, barber, who has been suffering from painless multiple nodules on right hand 4 forearm, is presented. The skin lesions developed about 3months ago, and increased sise and numbers of the lesion insidiously. Diagnosis was confirmed by characterietic clinical, mycological, histopathological studies He was treated with potassium iodide and there was markedly improved.
Adult ; Diagnosis ; Forearm ; Hand ; Humans ; Potassium Iodide ; Skin ; Sporothrix ; Sporotrichosis*

Purpose: The goal of study was to evaluate the clinical and radiographic performance of the proximal modular cementless femoral stem for use in revision total hip arthroplasty. Material and method: Fifty seven patients (57 hips) were followed for longer than 24 months or up to 8.4 years after performing revision total hip arthroplasty with using the proximal modular cementless femoral stem between January 1997 and December 2002. The preoperative diagnosis included 45 cases of aseptic loosening, 5 cases of septic loosening (re-revision operation), 6 cases of periprosthetic fracture and 1 case of recurrent dislocation. The bone deficiencies were classified according to the Paprosky classification: there were 27 cases of Type I and II, 19 cases of Type IIIA, 9 cases of Type IIIB and 2 cases of Type IV. Results: The average Harris hip score improved from 47 to 87.6. Clinically satisfactory results were noted in 50 patients (87.7%). Radiographically, distal stable fixation was observed in 54 patients (94.7%). Intraoperative complications included two greater trochanteric fractures and two proximal femur fractures. Postoperative complications included 5 femoral stem subsidences (2hips< 5mm, 3 hips>20mm), 4 deep infections, 2 non-unions of the greater trochanter and the osteotomy site and set screw dissociation was noted in 1 case. 5 proximal component changes were done due to progressive subsidence in two cases, non-union at the osteotomy site and trochanteric displacement in two cases and set screw dissociation in one hip. For the infection cases, the proximal segment was removed and re-revised with a 2nd stage operation. (Ed note: check this.) The subsidence of the femoral stems was showed in 3 Paprosky grade IIIA cases and in 2 cases of grade IIIB or more. There was no postoperative periprosthetic fracture observed at the last follow-up. Conclusion: Revision total hip arthroplasty using the proximal modular cementless femoral stem showed good results in the face of the infection of the proximal component and deficient proximal bony support. This procedure appears to be convenient for the surgeon to correct anteversion of the femoral head and leg length discrepancy.
Arthroplasty, Replacement, Hip ; Classification ; Diagnosis ; Dislocations ; Femur ; Follow-Up Studies ; Head ; Hip ; Hip Fractures ; Humans ; Intraoperative Complications ; Leg ; Osteotomy ; Periprosthetic Fractures ; Postoperative Complications ; Prostheses and Implants*

It is generally accepted that fractures should be treated by closed methods, however for certain femoral fractures in adults, closed methods yields an unacceptable high incidence of nounlon, malunion, delayed unlon, and disability. For these fractures various methods of open reduction and internal fixation have been recommended, but unfortunately, there are frequent reports of complications and failures. The recently developed association for study of Internal fixation (ASIF) compression plating apparatus, seems to satisfy the basic objectives of internal flxatlons: namely
Adult ; Femoral Fractures ; Femur ; Follow-Up Studies ; Humans ; Incidence ; Joints ; Walking