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Biomedical subjects

N Juul

Publications and source records attributed to N Juul.

45 records · Page 3Linked to original sources
PubMed1985

Influence of vasectomy on the volume of the non-hyperplastic prostate in men.

The influence of vasectomy on the volume of the non-hyperplastic prostate was investigated in 24 men referred consecutively for vasectomy. A comparison of trans-rectal prostatic volume determined ultrasonically before vasectomy and three months post-operatively revealed a highly significant decrease (P less than 0.01) in the volume of the peri-urethral portion of the gland. The volume of the outer zone of the prostate did not change significantly (P greater than 0.1). This may indicate that the prostate is not a functionally homogenous organ. It is postulated that there may be a local influence on the prostate via a hormone transported in the deferent duct and/or the deferential vein.

Adult↗
PubMed1985

Prostatic biopsy with the 21 gauge Surecut needle. A preliminary report of a new technique.

The 21 gauge Surecut needle is a fine needle system providing regular tissue cores for histological evaluation. Using the Franzén needle sheath, transrectal biopsies were performed on 13 patients and a tissue core obtained in 12 cases. Ultrasonically guided transperineal biopsies were performed on 14 patients and a tissue core was obtained in 13 cases. It is concluded that the 21 gauge Surecut needle is able to yield histological material for prostatic diagnosis.

Biopsy, Needle↗
PubMed1985

Ultrasound diagnosis of carcinoma of the urachus.

In a 48-year-old man with dysuria and microscopic haematuria, pyelography, cystoscopy and bimanual bladder palpation showed no definite abnormality. Because of continued symptoms, ultrasound scanning of the abdomen was done three months later. The examination revealed a tumour in close relation to the top of the bladder. Malignant cells were aspirated at ultrasonically guided puncture, and a urachus tumour was suspected. For early diagnosis of urachus tumours, ultrasound investigation of vague bladder symptoms is required.

Adenocarcinoma, Mucinous↗
PubMed1985

Percutaneous balloon catheter nephrostomy guided by ultrasound. Results of a new technique.

A new method for percutaneous nephrostomy is described. The renal pelvis is punctured guided by ultrasound and after dilatation of the tract a 10F silicone balloon catheter is inserted. The procedure was successful in 51 of 52 attempts (98%). The catheters were maintained from two to 150 days. Eight catheters slipped out unintended (16%) 27 to 86 days after the insertion. No serious complications were seen.

Catheterization↗
PubMed1984

Ultrasonically guided fine needle aspiration biopsy of retroperitoneal mass lesions.

Ultrasonically-guided fine needle aspiration biopsy of retroperitoneal mass lesions was performed in 96 consecutive patients. The puncture was done transperitoneally, guided by a dynamic scanner. The procedure is rapid with a high diagnostic sensitivity and specificity. A correct cytological diagnosis was established in 88% of the punctured masses with no false positives. Guided fine needle aspiration biopsy is recommended as an integral part of the ultrasound study of retroperitoneal tumour diagnosis. There were no complications to any of the biopsies and the risk is regarded as minimal.

Biopsy, Needle↗
PubMed1984

Histological sampling with a 23 gauge modified Menghini needle.

A 23 gauge modified Menghini (Surecut) needle biopsy technique for obtaining tissue core biopsies was compared with the conventional fine needle aspiration biopsy technique in the diagnosis of ultrasonically detected abdominal mass lesions. In 30 consecutive cases (19 malignant and 11 benign), adequate material for histological examination was obtained in 87% and for cytological examination in 97%. The diagnostic accuracy with respect to malignancy was 84% for histology and 89% for cytology. The predictive value of malignancy was 100% in both. The histological material provided additional information in four cases of malignancy, concerning the type and origin of the tumours, and in nine cases of benign lesions, indicating the type of lesion that appeared as a tumourlike mass in the ultrasound study. The Surecut needle biopsy has been found valuable in obtaining histological material from abdominal mass lesions and may supplement or even replace the fine needle aspiration biopsy in such lesions.

Abdominal Neoplasms↗
PubMed1983

Transperineal 125iodine seed implantation in prostatic cancer guided by transrectal ultrasonography.

A new method is described for precise transperineal insertion of radioactive 125iodine seeds in patients with prostatic cancer. The procedure is done under transrectal ultrasonography guidance using a special multichannel puncture attachment and a simple, efficient insertion technique. The advantages of the method are 1) the patients are spared the inconvenience and risk of an operation, 2) improved dose calculations are possible, and 3) seed application is easy and more precise than by the conventional operative free-hand technique.

Brachytherapy↗